Huang21921
Supporting Member
Is sponge harmful? It’s growing pretty fast in my tank.The first one looks like a sponge of some sort. I hadn't seen one quite that color before - it's pretty cool.
The second looks like a Rhodactis mushroom.
Thats a sign of a healthy aquarium.Is sponge harmful? It’s growing pretty fast in my tank.
Sponge or tunicate, both are good, but if you need to move them, make sure they remain in water at all times - most will die otherwise.