Rasping on plastic pot

[alexc1981]

My iredalei was doing this the other day. I took him off, but he went back to the pot and carried on as before.

As this normal? Could it do any harm?

I removed the pot just for that evening and put a cuttlebone under his nose in the hope that would satisfy him.

I dont think he has done it since i put the pot back.

[Ben snail]

My snails starting rasping on plastic not long ago, i took it out and the snail seemed ok