Nah, mine did that at first too--I just kept filling the plate and an hour later they'd be gone. Ray was afraid they'd overdose but I figured that if they ate it, they must need it. This only lasted about a week and now they've slowed way down, just 2-4 tabs a day. Some snails visit the plate every day, some once a week, some several times a day. I can tell you that when Clipsta-our big cana girl--visits the plate, there's nothing left but a coat of slime
. There was a thread the Stijn posted that he tried to overfeed his snails and they ate and ate and pooped and grew and fouled the water but never overate to the point of hurting themselves. Just think, if it was a cuttlebone or a weekend feeder that he ate that much of, you probably wouldn't even notice and he'd be fine.