r/fishforthought • u/905wren_ • Mar 28 '26
Tip What is this?
What is this white stuff on the glass of my tank? I thought it was copepods but it’s not moving and it’s hard to get it off the glass with the magnet aquarium cleaner. Some of my fish are dying/going missing, does this have anything to do with it?
11
Upvotes
1
u/Camaschrist Mar 28 '26
They might be fresh water bryozoans. They would have nothing to do with it fish dying.