Funny you say that, bc I used chemiclean for some red slime as well destroyed the red slime tank looked good for about 3 days and boom dinos. I did have a low nutrient issue. So I'm guessing by whipping out the red slime it gave way to allow the dinos to explode. Fixing my nutrient issue got rid of them.Great to hear @ScottB ! What red slime remover did you use? Interested because my dinos started after using Chemiclean for a minor case of cyano.