hair algae and CO2
Ok I have hair algea again...a UV filter worked last time and cleared it up with my GW but now it's back again. I don't know if it's BBA since the name doesn't lend itself to the very GREEN and LONG strands that I have. But either way I keep hearing that the CO2 must be low and to bump it up. Well according to chucks guide My co2 is at 150 ppm. High? I think so. But I can't tell. it's a 75 gallon tank...and the ph is set at 6.35, and the kh stays around 10 degrees. I have tried left and right to get the KH down but it tends to stay bubbled around 10. If the co2 were really that high would he algae still be able to live? or would they die out, or is that the reason the algae is there in the first place? The fish are fine, I added cardinals and the levels were like that...they were fine, I added rummy noses after the cardinals, and they were fine, everything still is fine. No gasping, and no surface swimming. so could it be that the chart is just off or that it wouldn't apply in the tank at hand. 150 seems really high...but I don't know if chucks guide acounds for the size of the body of water, but I don't know if that would really matter...I don't think that the volume of water would make a difference.
Any one know how to lower the KH from 10 to 2-3? that would really help my cause but I see more "kh up" stuff than "KH down".