that's pretty nasty looking. what do you have in your tank?
Most likely the snails, though I have never seen eggs that look like that. Look like those tetras that lay their eggs on leaves out of the water, and splash by flicking there tails haha.
well, not exactly like that. rasbora and tetra are egg scatter-er. they don't deposit the eggs in one giant clump. most likely some snail eggs. what kind of snails do you have?
Yep mystery snails crawl out of the water and lay eggs where when the baby snails hatch they can fall right into the water. If you don't want more mystery snails you need to remove the eggs.
are mystery snails the giant purple ones? I've never bought any snails ever... they were always just freebies that came on plants