white fuzz

Hey all! So I got this Copperband butterfly about a week ago, finally started eating again so that is exciting! However, about three days in he developed this kind of white fuzz. One on his top fin, a bit on his side fins and his back fin as well. It appears to be growing a little throughout...

I’ve noticed a white fuzz growing all over my tank, wondering what this is and if there is a way to get rid of it. The tank has been up for 2 years, it’s a 20 gallon. Checked all my parameters and they’re all good (salinity 1.025, temperature 80).

Please help me identify this weird white hair looking fuzz. I couldn't find anything on google images or on this page. Looks almost like hair algae but white and more silky and spider web like. It's dense and is mostly under my rocks or on the side. Already irritating my zoas I have above it...

Is this normal on Alvepora? (White stringy stuff on the bottom).

Hi everyone. So we stocked our new, fully-cycled tank with two ocellaris clownfish and one euphyllia divisa frag (around 5*5*5cm) 4 weeks ago. The ocellaris are doing great, but the euphyllia never fully expanded and seems to be receding now. This morning, it has not opened at all. We noticed...