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  <channel>
    <title>General Discussion</title>
    <description>For general Algae Scrubber related items</description>
    <pubDate>Fri, 13 Mar 2026 14:52:54 +0000</pubDate>
    <lastBuildDate>Fri, 13 Mar 2026 14:52:54 +0000</lastBuildDate>
    <generator>Algae Scrubbing</generator>
    <link>https://www.algaescrubbing.com/forums/general-discussion.30/</link>
    <atom:link rel="self" type="application/rss+xml" href="https://www.algaescrubbing.com/forums/general-discussion.30/index.rss"/>
    <item>
      <title>New Algae Scrubber newbie</title>
      <pubDate>Mon, 24 Apr 2023 14:43:24 +0000</pubDate>
      <link>https://www.algaescrubbing.com/threads/new-algae-scrubber-newbie.879/</link>
      <guid>https://www.algaescrubbing.com/threads/new-algae-scrubber-newbie.879/</guid>
      <author>invalid@example.com (lovefish77)</author>
      <dc:creator>lovefish77</dc:creator>
      <content:encoded><![CDATA[Hi,<br />
<br />
Thanks everyone for this site and I am glad to be here. A couple of months back I upgraded to a 75 gallon reef tank (from a 40 gallon tank). Setup is a bare bottom tank with an open rock scape. I am using a 20 gallon long sump for the skimmer, heaters, return pump…etc. As part of the setup I decided to build an algae scrubber (coz I am tired of changing and playing with gfo and other media). The diy algae scrubber is 6.5” in width and ~ 12” tall lit on both ends using the following...<br />
<br />
<a href="https://www.algaescrubbing.com/threads/new-algae-scrubber-newbie.879/" class="internalLink">New Algae Scrubber newbie</a>]]></content:encoded>
      <slash:comments>139</slash:comments>
    </item>
    <item>
      <title>Preserving a screen</title>
      <pubDate>Sat, 21 Aug 2021 15:58:25 +0000</pubDate>
      <link>https://www.algaescrubbing.com/threads/preserving-a-screen.1022/</link>
      <guid>https://www.algaescrubbing.com/threads/preserving-a-screen.1022/</guid>
      <author>invalid@example.com (lovefish77)</author>
      <dc:creator>lovefish77</dc:creator>
      <content:encoded><![CDATA[So currently I am thinking of unplugging my algae scrubber and replacing it with a chaeto reactor. Just trying to save some room in the sump to add some anemones in the middle chamber.<br />
<br />
So the thought process is <br />
1. Unplug the scrubber<br />
2. Preserve the screen submerged in the sump<br />
3. Rearrange the sump with the chaeto reactor and monitor things<br />
4. If i dont like the chaeto reactor and the new setup I will revert to the scrubber (using screen from step 2).<br />
<br />
Questions;<br />
1. Thoughts in general on...<br />
<br />
<a href="https://www.algaescrubbing.com/threads/preserving-a-screen.1022/" class="internalLink">Preserving a screen</a>]]></content:encoded>
      <slash:comments>2</slash:comments>
    </item>
    <item>
      <title>What does this growth mean?</title>
      <pubDate>Mon, 15 Feb 2021 16:29:25 +0000</pubDate>
      <link>https://www.algaescrubbing.com/threads/what-does-this-growth-mean.1021/</link>
      <guid>https://www.algaescrubbing.com/threads/what-does-this-growth-mean.1021/</guid>
      <author>invalid@example.com (ChrisQ0904)</author>
      <dc:creator>ChrisQ0904</dc:creator>
      <content:encoded><![CDATA[I have a newly setup algae scrubber, maybe 1.5months installed and I am getting growth but not hair algae. I was wondering if someone could help me out with what the growth is trying to tell me... Excess nutrients/lighting/flow etc. I had very little growth for a bit running reverse lighting and when it finally grew it was like a think slime, the past week I have had the lights on 24/7 and the picture is what I have at the end of the week. <br />
<br />
Thank you. 
<img src="attachments/1819/" alt="" class="bbCodeImage LbImage" />]]></content:encoded>
      <slash:comments>1</slash:comments>
    </item>
    <item>
      <title>My newest L4 ATS</title>
      <pubDate>Sat, 06 Feb 2021 05:46:33 +0000</pubDate>
      <link>https://www.algaescrubbing.com/threads/my-newest-l4-ats.921/</link>
      <guid>https://www.algaescrubbing.com/threads/my-newest-l4-ats.921/</guid>
      <author>invalid@example.com (tom39)</author>
      <dc:creator>tom39</dc:creator>
      <content:encoded><![CDATA[Just picked up a used L4 (at least I think it is an L4) yesterday. It was very dirty but I have managed to clean it up fairly well and hope to have it ready to be installed by the end of the weekend. My plan was to install it on my 150g cube but I am thinking that it may be a bit to much for that size of tank. What do you all think?]]></content:encoded>
      <slash:comments>31</slash:comments>
    </item>
    <item>
      <title>Question</title>
      <pubDate>Thu, 10 Dec 2020 15:40:32 +0000</pubDate>
      <link>https://www.algaescrubbing.com/threads/question.1020/</link>
      <guid>https://www.algaescrubbing.com/threads/question.1020/</guid>
      <author>invalid@example.com (Edfe)</author>
      <dc:creator>Edfe</dc:creator>
      <content:encoded><![CDATA[Newby question on ATS<br />
<br />
I just transfer my current 60 gal cube to a 110 new sand same rock and new water, i decided to try an ATS because cheato made a mess on my old sump.<br />
<br />
I decided to get a Clear water -100 m current readings before adding the ATS were with a photoperiod of 18 hours<br />
<br />
nitrate-5<br />
Phosphate - .5<br />
<br />
thats when i decided to get the scrubber online, its been a week and i started to see some brown slime on the screen and floating on my sump<br />
<br />
readings ara still holding steady at...<br />
<br />
<a href="https://www.algaescrubbing.com/threads/question.1020/" class="internalLink">Question</a>]]></content:encoded>
      <slash:comments>2</slash:comments>
    </item>
    <item>
      <title>Is short on off ATS light cycle OK?</title>
      <pubDate>Thu, 12 Nov 2020 14:28:57 +0000</pubDate>
      <link>https://www.algaescrubbing.com/threads/is-short-on-off-ats-light-cycle-ok.1019/</link>
      <guid>https://www.algaescrubbing.com/threads/is-short-on-off-ats-light-cycle-ok.1019/</guid>
      <author>invalid@example.com (Levinson)</author>
      <dc:creator>Levinson</dc:creator>
      <content:encoded><![CDATA[Hi all, back with another ATS question.<br />
I&#039;m running a diy ATS (my second diy ATS) and it seems to be working so far.<br />
Currently, the lights go on and off every 2 hours (2 hours on, 2 hours off). It&#039;s been like that since I&#039;ve set it up. I thought it might also help reduce the heat from the light.<br />
My question is, does the length of the photoperiod matter? Like, in terms of the nutrient export/growth, or the type of growth, etc.<br />
I&#039;m fairly happy with the ATS so far but would it work better with...<br />
<br />
<a href="https://www.algaescrubbing.com/threads/is-short-on-off-ats-light-cycle-ok.1019/" class="internalLink">Is short on off ATS light cycle OK?</a>]]></content:encoded>
      <slash:comments>2</slash:comments>
    </item>
    <item>
      <title>L2 Rev 3 on 120 Gallon Reef Tank</title>
      <pubDate>Wed, 28 Oct 2020 23:19:47 +0000</pubDate>
      <link>https://www.algaescrubbing.com/threads/l2-rev-3-on-120-gallon-reef-tank.861/</link>
      <guid>https://www.algaescrubbing.com/threads/l2-rev-3-on-120-gallon-reef-tank.861/</guid>
      <author>invalid@example.com (freshoffthegrill)</author>
      <dc:creator>freshoffthegrill</dc:creator>
      <content:encoded><![CDATA[Finally got my 120 Gallon Reef tank up and running.  Recently completed cycling the tank and added my first fish.  I plan on running the L2 with a protein skimmer, filter socks and periodic use of carbon.
<img src="attachments/1110/" alt="" class="bbCodeImage LbImage" /> 
<img src="attachments/1111/" alt="" class="bbCodeImage LbImage" /><br />
<br />
Last two days the screen has really taken off from next to nothing.  I have the LEDs on 100% and the photo period of 18 hours, this might be too long and I will back off if I see any ill effects.  So far so good....]]></content:encoded>
      <slash:comments>9</slash:comments>
    </item>
    <item>
      <title>Next step with ATS?</title>
      <pubDate>Tue, 08 Sep 2020 13:49:02 +0000</pubDate>
      <link>https://www.algaescrubbing.com/threads/next-step-with-ats.1017/</link>
      <guid>https://www.algaescrubbing.com/threads/next-step-with-ats.1017/</guid>
      <author>invalid@example.com (HobbyReef)</author>
      <dc:creator>HobbyReef</dc:creator>
      <content:encoded><![CDATA[Hello you all! Im new here and heard about this from reef2reef forums hence I decided to ask a few opinions from more experienced &quot;scrubberists&quot; <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie8" alt=":D" title="Big Grin    :D" /> Sorry, english is not my mother tongue.<br />
<br />
So, I have 120g system which is around 3 months old. I built my own custom made ATS and it has started to have some growth in the past weeks.<br />

<img src="attachments/1810/" alt="" class="bbCodeImage LbImage" /> 
<img src="attachments/1811/" alt="" class="bbCodeImage LbImage" /><br />
<br />
I normally run lights 18 hours on and 6 off. My concern is should I clean this screen already or let it grow...<br />
<br />
<a href="https://www.algaescrubbing.com/threads/next-step-with-ats.1017/" class="internalLink">Next step with ATS?</a>]]></content:encoded>
      <slash:comments>1</slash:comments>
    </item>
    <item>
      <title>DIY Build in a Sterilite Box!</title>
      <pubDate>Sun, 16 Aug 2020 17:42:40 +0000</pubDate>
      <link>https://www.algaescrubbing.com/threads/diy-build-in-a-sterilite-box.1016/</link>
      <guid>https://www.algaescrubbing.com/threads/diy-build-in-a-sterilite-box.1016/</guid>
      <author>invalid@example.com (MrTang)</author>
      <dc:creator>MrTang</dc:creator>
      <content:encoded><![CDATA[Hey, all!<br />
<br />
My name is Zach, and I&#039;m glad to be on this forum.  The algae-scrubber basics have come in so handy to me lately, and I&#039;m glad for the compendium of knowledge on this site.  In fact, after reading up, I don&#039;t know why the whole world doesn&#039;t scrub with algae!  (Clever marketing on filter-makers&#039; part?)  All that being said, I&#039;m glad to be here now, and this is my first foray into algae scrubbing.  Though I realize this is primarily a saltwater method, I&#039;m a freshwater enthusiast...<br />
<br />
<a href="https://www.algaescrubbing.com/threads/diy-build-in-a-sterilite-box.1016/" class="internalLink">DIY Build in a Sterilite Box!</a>]]></content:encoded>
      <slash:comments>3</slash:comments>
    </item>
    <item>
      <title>Buying Hair Algae</title>
      <pubDate>Mon, 13 Jul 2020 00:59:26 +0000</pubDate>
      <link>https://www.algaescrubbing.com/threads/buying-hair-algae.1015/</link>
      <guid>https://www.algaescrubbing.com/threads/buying-hair-algae.1015/</guid>
      <author>invalid@example.com (trivodi)</author>
      <dc:creator>trivodi</dc:creator>
      <content:encoded><![CDATA[Looking to buy some green hair algae. All I can grow is the very fine hair algae, want to get some of the thick green turf stuff. <br />
<br />
All I need is a small bit like a golf ball size or so. Paying $20 + shipping USPS 2-3 day. Will pay via PayPal. <br />
<br />
If you got some for sale please email me at <a href="mailto:trivodi@gmail.com">trivodi@gmail.com</a> <br />
<br />

<img src="attachments/1799/" alt="" class="bbCodeImage LbImage" /> <br />
<br />
thanks]]></content:encoded>
    </item>
    <item>
      <title>New to the forum and ATS’s</title>
      <pubDate>Mon, 13 Jul 2020 00:45:31 +0000</pubDate>
      <link>https://www.algaescrubbing.com/threads/new-to-the-forum-and-ats%E2%80%99s.1013/</link>
      <guid>https://www.algaescrubbing.com/threads/new-to-the-forum-and-ats%E2%80%99s.1013/</guid>
      <author>invalid@example.com (kilgoretrout)</author>
      <dc:creator>kilgoretrout</dc:creator>
      <content:encoded><![CDATA[This forum has been helpful so thank you all in advance. <br />
<br />
I recently installed an DIY ATS on my 80g system. It’s been up and running for ~4 weeks with very limited growth. <br />
<br />
6”x10-12” screen(the length is a logistical choice based on keeping noise down and having it end just under the surface into the refugium(rock rubble)) I just figured the more screen the better even if the lights cannot cover the whole surface. <br />
<br />
the lights are 10w violet spectrum amazon jobs....<br />
<br />
<a href="https://www.algaescrubbing.com/threads/new-to-the-forum-and-ats%E2%80%99s.1013/" class="internalLink">New to the forum and ATS’s</a>]]></content:encoded>
      <slash:comments>13</slash:comments>
    </item>
    <item>
      <title>Sizing, feeding, quantity.</title>
      <pubDate>Mon, 18 May 2020 16:38:29 +0000</pubDate>
      <link>https://www.algaescrubbing.com/threads/sizing-feeding-quantity.1010/</link>
      <guid>https://www.algaescrubbing.com/threads/sizing-feeding-quantity.1010/</guid>
      <author>invalid@example.com (atoll)</author>
      <dc:creator>atoll</dc:creator>
      <content:encoded><![CDATA[Most of us are aware that most ATSs are sized on the number of feeds per day.  However, I am sure the amount not just the number of feeds you feed must play a part in sizing an ATS. I have heard little discussion about the amount of feed as in bulk or weight and much more about the number of feeds when sizing a scrubber.<br />
An example of the above. Let&#039;s say I feed 1 whole cube of food twice a day that&#039;s 2 feeds of 1 cube per day, 2 cubes in total. Now if I feed 2 cubes twice a day that&#039;s still...<br />
<br />
<a href="https://www.algaescrubbing.com/threads/sizing-feeding-quantity.1010/" class="internalLink">Sizing, feeding, quantity.</a>]]></content:encoded>
      <slash:comments>2</slash:comments>
    </item>
    <item>
      <title>Growing something other than GHA</title>
      <pubDate>Mon, 18 May 2020 09:34:30 +0000</pubDate>
      <link>https://www.algaescrubbing.com/threads/growing-something-other-than-gha.1011/</link>
      <guid>https://www.algaescrubbing.com/threads/growing-something-other-than-gha.1011/</guid>
      <author>invalid@example.com (atoll)</author>
      <dc:creator>atoll</dc:creator>
      <content:encoded><![CDATA[For quite some time now I have been growing Ulva intestinalis in my L2 Rev3. I stumbled on this algae quite by chance a few years ago when I was sent some from the Island of Guernsey situated between the UK and France. When it was sent to me it was sent as just a local algae that was growing on a guys ATS screen. It <br />
<br />
The Ulva was presumed to have arrived as the guy used local seawater in his aquarium and the seeds from it must have been brought in, in the water.  This Ulva obviously found...<br />
<br />
<a href="https://www.algaescrubbing.com/threads/growing-something-other-than-gha.1011/" class="internalLink">Growing something other than GHA</a>]]></content:encoded>
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    <item>
      <title>No algae growth AT ALL</title>
      <pubDate>Sat, 16 May 2020 22:30:36 +0000</pubDate>
      <link>https://www.algaescrubbing.com/threads/no-algae-growth-at-all.1006/</link>
      <guid>https://www.algaescrubbing.com/threads/no-algae-growth-at-all.1006/</guid>
      <author>invalid@example.com (Levinson)</author>
      <dc:creator>Levinson</dc:creator>
      <content:encoded><![CDATA[Hi, after many trials and errors during the building phase, I finally got my DIY ATS built and started running it.<br />
It&#039;s been 6 days and I&#039;m not getting any growth, no slime, no hint of colour on the screen, no nothing.<br />
Is this normal? Is there something not quite right? 6 days not enough to expect any sign of growth?<br />
I got a little anxious and put some dried shrimps in the water 3 days ago. Should I remove it or leave it till I get some algae growth?<br />
The details of the setup are as shown...<br />
<br />
<a href="https://www.algaescrubbing.com/threads/no-algae-growth-at-all.1006/" class="internalLink">No algae growth AT ALL</a>]]></content:encoded>
      <slash:comments>7</slash:comments>
    </item>
    <item>
      <title>Quick question on scrubber screen</title>
      <pubDate>Wed, 29 Apr 2020 01:11:12 +0000</pubDate>
      <link>https://www.algaescrubbing.com/threads/quick-question-on-scrubber-screen.1004/</link>
      <guid>https://www.algaescrubbing.com/threads/quick-question-on-scrubber-screen.1004/</guid>
      <author>invalid@example.com (lovefish77)</author>
      <dc:creator>lovefish77</dc:creator>
      <content:encoded><![CDATA[Hi Turbo, I did a mistake this week I turned of water flow in my scrubber for like a day or two and lights were left on (15 hours). So the screen dried out and coraline algae in the scrubber died. There is some little growth starting to happen but yellowish not green! <br />
SO QUESTION HERE; does this mean it will be like starting with a brand new screen? Lmk please so I can reduce feeding accordingly. <br />
<br />
Thank you]]></content:encoded>
      <slash:comments>14</slash:comments>
    </item>
    <item>
      <title>Help needed</title>
      <pubDate>Mon, 06 Apr 2020 15:02:26 +0000</pubDate>
      <link>https://www.algaescrubbing.com/threads/help-needed.992/</link>
      <guid>https://www.algaescrubbing.com/threads/help-needed.992/</guid>
      <author>invalid@example.com (Green hair)</author>
      <dc:creator>Green hair</dc:creator>
      <content:encoded><![CDATA[<iframe width="500" height="300" src="https://www.youtube.com/embed/ZpqCcgtRJIU?wmode=opaque" frameborder="0" allowfullscreen></iframe><iframe width="500" height="300" src="https://www.youtube.com/embed/8txDa_jKq0w?wmode=opaque" frameborder="0" allowfullscreen></iframe><iframe width="500" height="300" src="https://www.youtube.com/embed/3MnLycVu0Sk?wmode=opaque" frameborder="0" allowfullscreen></iframe><br />
Hi I have recently restarted my scrubber after using fluconazole to get rid bryopsis and vibrant against bubble algae which works a treat given time. I have had to change lights because the others kept dying and found these lights. Anyway I can&#039;t seem to bring nitrates down, algae seems loose and easy comes away<br />
Nitrate are around 100<br />
Phosphate is 0.08<br />
Lights on from 7pm till 12noon<br />
Algae...<br />
<br />
<a href="https://www.algaescrubbing.com/threads/help-needed.992/" class="internalLink">Help needed</a>]]></content:encoded>
      <slash:comments>25</slash:comments>
    </item>
    <item>
      <title>Dimming rain2 algae scrubber or any other scrubber</title>
      <pubDate>Thu, 05 Mar 2020 14:17:17 +0000</pubDate>
      <link>https://www.algaescrubbing.com/threads/dimming-rain2-algae-scrubber-or-any-other-scrubber.1001/</link>
      <guid>https://www.algaescrubbing.com/threads/dimming-rain2-algae-scrubber-or-any-other-scrubber.1001/</guid>
      <author>invalid@example.com (trivodi)</author>
      <dc:creator>trivodi</dc:creator>
      <content:encoded><![CDATA[<img src="attachments/1772/" alt="" class="bbCodeImage LbImage" /> Here&#039;s how I set up a dimmer for a rain 2 scrubber which can also be used with any led powers scrubber. Here are the parts, all from Amazon for $22.<br />
<br />
The set up is pretty strait forward, the power from the power supply goes to the summer, the output goes to the 4 way splitter, then to the lights.<br />
<br />
The power supply for the rain 2 is 11v 3A but the dimmer says that it needs 12v. On the Amazon reviews a guy tested the summer all the way down to 6v and it works fine....<br />
<br />
<a href="https://www.algaescrubbing.com/threads/dimming-rain2-algae-scrubber-or-any-other-scrubber.1001/" class="internalLink">Dimming rain2 algae scrubber or any other scrubber</a>]]></content:encoded>
      <slash:comments>2</slash:comments>
    </item>
    <item>
      <title>Can the ATS screen size compensate for the strength of light?</title>
      <pubDate>Sat, 29 Feb 2020 15:52:28 +0000</pubDate>
      <link>https://www.algaescrubbing.com/threads/can-the-ats-screen-size-compensate-for-the-strength-of-light.1000/</link>
      <guid>https://www.algaescrubbing.com/threads/can-the-ats-screen-size-compensate-for-the-strength-of-light.1000/</guid>
      <author>invalid@example.com (Levinson)</author>
      <dc:creator>Levinson</dc:creator>
      <content:encoded><![CDATA[Hi, I was wondering if the larger ATS screen size can compensate for the strength of the light, assuming the light is evenly spread across the screen.<br />
In another words, can weaker light over a larger screen perform as well as setup with a smaller screen with a stronger light source?<br />
<br />
How about flowrate? Can a setup with a larger screen size with lower flow rate perform as well as a smaller screen size with a high flow rate setup? (Assuming the light remained the same).]]></content:encoded>
      <slash:comments>4</slash:comments>
    </item>
    <item>
      <title>looking for a Nano driver for 1 to 2 -3W Leds</title>
      <pubDate>Tue, 25 Feb 2020 21:22:56 +0000</pubDate>
      <link>https://www.algaescrubbing.com/threads/looking-for-a-nano-driver-for-1-to-2-3w-leds.994/</link>
      <guid>https://www.algaescrubbing.com/threads/looking-for-a-nano-driver-for-1-to-2-3w-leds.994/</guid>
      <author>invalid@example.com (Deva)</author>
      <dc:creator>Deva</dc:creator>
      <content:encoded><![CDATA[Ok so here is the deal. I am building a nano upflow  ATS  for an AIO reef. <br />
but I am having a heck of a time finding a driver that can work on such a small load.<br />
<br />
my normal go to is the MW LPC 35-700 but it&#039;s min. is 9V so 4 leds. <br />
<br />
screen will be around .5 cube so not to big at all. <br />
<br />
I know the LDD drivers can do that but then you need a crazy power supply not really what I am looking for.<br />
<br />
looking for options?<br />
would the MW ACP 35-700 would on such a small load? <br />
any simpler options like a...<br />
<br />
<a href="https://www.algaescrubbing.com/threads/looking-for-a-nano-driver-for-1-to-2-3w-leds.994/" class="internalLink">looking for a Nano driver for 1 to 2 -3W Leds</a>]]></content:encoded>
      <slash:comments>11</slash:comments>
    </item>
    <item>
      <title>Best way and place to mount ATS in your sump</title>
      <pubDate>Wed, 19 Feb 2020 23:44:55 +0000</pubDate>
      <link>https://www.algaescrubbing.com/threads/best-way-and-place-to-mount-ats-in-your-sump.999/</link>
      <guid>https://www.algaescrubbing.com/threads/best-way-and-place-to-mount-ats-in-your-sump.999/</guid>
      <author>invalid@example.com (Rushy43)</author>
      <dc:creator>Rushy43</dc:creator>
      <content:encoded><![CDATA[Hi, new to ATS&#039;s but looking to install the Atlantic 1 CGI waterfall type available here in the UK in my new tank sump. My sump is the EA Reef Pro 600s Cube 4 chamber baffled variety which is a UK built aquarium.<br />
Would the ATS sit in the first (Drain) chamber or second chamber of the sump? Thinking of adding a skimmer, would this go before it or after it?<br />
 And finally, I gather the ATS sits above the sump water line but how do folk mount them? I&#039;m a little puzzled here as all videos i&#039;ve...<br />
<br />
<a href="https://www.algaescrubbing.com/threads/best-way-and-place-to-mount-ats-in-your-sump.999/" class="internalLink">Best way and place to mount ATS in your sump</a>]]></content:encoded>
      <slash:comments>7</slash:comments>
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