pest

I suddenly have little green ball nems popping up on hard objects all over my tank. I know they’re not true nems and apparently more like mushroom corals, but there are mixed reviews on if they will affect the corals they are near or not. The main issue is they’re too small and quick to just try...

Hello all! To be honest I don't know how to describe these things. They look a bit like tiny pineapples that are completely white. I have attached a picture to help. Now that I have spotted them, I see that there are tons of them. Does anyone know what these are? They are approximately anywhere...

Let these images serve as a good reminder to always inspect AND DIP any corals you get before they go in your tank. Inspecting this acro closely under white daylight showed bite marks, but no visible pests, but I know better. Hydrogen peroxide revealed not one, but two types of flatworms; acro...