Something Nibbling on my ToadStool

[Chad]

Originally Posted by AJ_77

I know what you mean, I heard clicking in there for the first time the other night...

Ya, that would be a bit frightening depending on what it is of course. So far the crabs seem harmless.. We will see. However, just to note that these "nibble" marks also appear on the top.

I have heard that micro bubbles can cause problems.. Could this be the possible cause?

Chad