People don't like to stress their fish by jacking up the CO2 bubble rate, but it doesn't have to stress the fish. If you increase bubble rate a little bit each week when you do routine maintenance, then observe the tank for a week, very carefully, and if nothing seems to be bad, do it again, until you see algae not regrowing so quickly when you prune it all away. Usually that will be at a point before the fish start showing problems. That is how I got control of my algae at one time - but then I let the tank get badly overgrown with plants, and had some guppies die, probably from the summer heat, so I had ammonia issues, and some of the algae came back.
I have now reduced my light from 3.8 watts per gallon to 2.4 watts per gallon, so I expect to soon be possessor of a completely algae free tank. (I also expect to win the lottery.) |