That's a little odd. I'd keep a close eye on your ammonia. Pulling up hair algae really shouldn't create ammonia, I don't think. Might suggest you either have a problem with your biological filter, or are overstocked.sdesi2005 said:Just tested my water, PH 8.4, Nitrate 0, Nitrite 0, I did have a slight Ammonia spike about 0.25. Its usually 0. I have been pulling a lot of the hair algae off the rocks manually, that may have caused it to spike slightly by stirring up the tank a little. I'll test it again later.