So I have 2 nassarius snails in my tank and both were eating fine. Like normal, they would dig themselves in the sand then come up as soon as I fed. One still does that but the other hasn't been coming out. I sifted the sand a bit to see if he was dead but he is still alive. I put some food right next to him and he ate but then went straight back into the sand.
Is this normal behavior? Or could he be sick?
Is this normal behavior? Or could he be sick?