I just got a big nassarius snail for my new (3 mos) 40g tank to take care of uneaten food. It's fowlr and the nitrates are about 30-40ppm. Is that going to bother the snail? I put in some Purigen today and run a skimmer. Dry rock and dry sand are probably live by now. Is he going to be ok? He's already buried himself in the sand so it's hard to tell. LFS store said a short acclimation was ok. Any advice is welcome!