Snails very unhappy

[ScubaSteve]

Possibly, though I wouldn't expect that is the culprit. That would have been something that would have showed itself pretty quick after the move and when I recently move stuff around I didn't move rock around, only the frags and colonies. If there was a continual source, then it's a possibly but it's pushing close to two months since the move with at least 8 sizable water changes.