I have a Finnex Planted Plus 30" and a Marineland Double Bright (Reef) on a standard 29g with C02 infusion. I keep having to battle BBA. I have a properly calibrated PH meter that controls the C02, and I don't have it on a timer. I just maintain a constant PH all day & night long. I can't for the life of me figure out how to get rid of the BBA. It's doesn't take over the tank, but my Hairgrass always has that crap in it and it looks horrible. What can I do besides breaking the tank down and starting over?? I have done the "One-Two" Punch Peroxide and Excel that is in the forum. I know the Reef light isn't optimal and I do have issues with Diatoms but that's basically because of not dosing Ferts all the time. I also have 4 SAE (true) and they will only eat the algae if I spot kill it first.