I have got through loads of turbo snails. The first batch of ten died (apart from 1) along with my entire stock of invertibrates ( i put this down to some finger coral i added that sent my ph crazy) I sorted the tank but the next batch died a death followed by the next. Hermit crabs now seem to survive but my latest batch of 5 super turbos seem to be following the others. I do have the one "ultimate warrior" snail who is still going strong from the very first batch.Help i'm loosing faith and its costing me a packet. 