What is the definition of a tank crash?

[Wayne]

Originally Posted by Aquattro

I'd maybe investing in something to pull copper, just in case. Any issues with snails or hermits, etc?

I have two peppermint shrimp and an emerald crab that are fine, I saw a hermit a day or two ago. I am missing two mexican turbo snails (which might have set this all off), as for other misc snails I just realized that I haven't seen any in a long time...