sillyfishy
Aquarium Advice Regular
I have these little things all over the glass in my tank, I think they are hydroid jellyfish(from what I've read). They look like little snowflakes. They're white with little a dot in the middle and little arms all around the dot. There are about 50 of them right now. I didn't even notice them yesterday, so I think they are growing or multiplying fast, does anyone know what they are and if they're good or bad??