I put a variety of snails in my new tank and a few days later it looks like the nessarius snails are ganging up on and attacking a trochus. Three of them had him flipped over and were on top. So thinking he couldn't get right side up, I brushed them aside and flipped him over and they immediately went right back after him.
So, do they eat other snails? It didn't look like a tickle fight.
So, do they eat other snails? It didn't look like a tickle fight.