I have this light lime green colored sponge that's starting to choke out my zoas and palys. I've tried taking pictures of it but can't get one that shows them with any clarity. Has anyone experienced these? Any solution to them? I first saw them awhile back but they were only growing on rocks and actually looked cool so I left them alone. Now they are showing up all around my zoas and are slowly but surely killing them. I imagine the immediate short solution is to isolate the ones I can and try air exposure or fresh water dips. However I'm afraid it will just come back since its on a lot of the rock work. I've put a lot of effort into collecting different zoas and palys. I'm almost considering just getting all the angels I always wanted and say forget the corals they eat too..arggggg...