The white worms look like spionid worms. Harmless. As for the thing on the snail shell, I need a picture with white lights on to see it betterso 15 months in and my tanks getting very "healthy"(lots of little living things).
Ive noticed 2 weird things develops on the snails. I'm more concerned about the white worm things. They just look like parasites to me. The other is either an orange sponge or algea.
Bonus: is that a small oyster on the snails shell?
What do we think? Should I take the snails out?