I’ve never heard of doing that! Thanks for the suggestion, I’ll have to try it.You could try to do a black out on your tank for 2 or more days. Turn all the lights on it off and tape thick black paper on all the sides of the tank so no light can get through. I’ve never personally done it as I haven’t had bad algae outbreaks, but I’ve heard it’s a really easy way to get rid of algae.