I have been having some algae issues near the top of my tank on my plants and have determined that the high light level and low flow near the top of the tank on one side is causing a nutrient deficiency that is ripe for algae.
I need a very low flow powerhead to keep a slight current at the surface so water does not stagnate.
My tank is a 20 gallon high, and I would prefer it to be inexpensive.
Could anyone view this page (from PetSmart) and tell me which one would fit my needs and budget? I'm leaning towards the AquaClear line since their HOB
filters are excellent, but I don't know how well their powerheads are. Thanks.