Hey there everyone, I started off with a 6X8 waterfall scrubber ran by two 23w cfl with reflectors. I didn't enjoy the sound over time caused by streamers nor the size of the fixtures. So I made an acrylic box and switched to LEDS. I am running 12 660 cree solderless LEDS (6 on each side). I also decreased the size of the screen to 6X5. Now what I am experiencing is a dark green mattish algae that almost peels off when I run it under water. When it peels off there are no roots filling in the screen anymore. I am wondering if I am running too intense of light. Due to the lights being solderless and my driver being non-dimmable I feel like my only course of action would be to decrease the number of led's to 3-4 each side. I've tried diffusing the light by making a scotch tape "panel", but may need to look into something else. Thanks for any help you can provide!