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For the Rio pumps, a good estimate is to add 24" to the vertical head you have and then put that on the curve. So if you have 12" vertical head,...
Dedicated for the scrubber?
Photosaturation is a concern with low flow, but if it's REALLY low, then you might end up with some sections drying out!
Looks good! I've seen several versions of scrubbers built like this, one was a commercially available unit at least for a while (not sure if it's...
Welcome to the group!
That's a constant voltage (CV) power supply, most use constant current (CC). Unless you have a driver board that requires CV (like my current...
Not sure what you mean? I noticed on the 2nd link, that one had a external power supply, but on the first link, they didn't show anything for the...
I think either of those would be a huge improvement. In fact I just ordered two of the CF Grow ones, that looks like a new form factor so I'm...
I still think it's the lighting - that's not a lot of growth for ~18 days on that total area of screen. You should be able to get the same growth...
I can see a few issues. What's strange is that these didn't seem to be issues before (a year ago) but I may know why. The lights are not very...
Based on what you've written in this thread, the scrubber should absolutely be able to handle it all by itself. So there must be some aspect...
I understand what you're saying here, I am also of this opinion. This is a math issue - here's an example (not specific to your system) Let's...
Welcome!!
Just using math, a 15% PWC would only lower nitrates from 40 ppm to 34ppm, and if you have a net increasing nitrate level, that's not much. I'm...
Apparently the VioSys are much better across the board. So you're fine with either the VioSys or the SemiLED ones
When was the last time you did a water change? What brand test kit are you using?
Yes, all over the world!
You might actually have too much flow. 350 GPH on a 6" wide screen is about 2x more that you need. That can lead to adverse effects actually....
I do 2"-2.5" from LED to screen with acrylic in between. I'll have to ask Steve's about the VioSys HV. However since you really only need to run...
LEDs should be no closer than about 1/2" to the acrylic, maybe a bit more. It only really matters for the higher intensity LEDs like Royal Blues...
