I started an algae scrubber about a month ago. I have a thick rough screen an 3 65watt- 6500k daylight flood lights on it but their more towards the top because of limited space. The flow seems to be fine a solid wall flowing off the screen but it only grows green hair algae at the top and red algae in the middle and nothing at the bottom???????........ I've seen online where people have made one out of a 5 gallon bucket and the lights were at the top of the screen and it looked like theirs were working fine. Is it me just not being patient or does it sound like I'm doing something wrong?