The fish tank has had this persistent blue algae problem. I scrape the inside walls, change the water, stir the stones, but the surface algae keeps coming back.
I can’t take all the fish out and disinfect.
I read it somewhere that if you do a 3 to 5 day blackout of the fish tank, the blue algae dies because it lacks UV and can’t follow through on photosynthesis.
Anyone have any other tips?
I’ve been peeking in periodically. The fish look like they’re doing OK.
I think we were making a big mistake by having a UV light on the fish tank. And apparently even blue nightlight helps the blue algae grow as well. So we’ve eliminated those two things, and hopefully this blackout works.