I have a 27 G tank with 2 301 power heads for circulation. Both are currently about 2 inches below the water line near the back of the tank. 1 points toward front and down and the other straight ahead. I have read that with out proper circulation, out breaks of algae can occur. Should I lower 1 power head down? How much water circulation is too much? I don’t want to come 1 day and see my fish looking like there are stuck on a merry-go-round.
Patrick
Patrick



