hmm, well i would have suggested nassarius snails AFTER the fish as the last clean up crew members, mainly because leftover fish food will sustain them, so you are going to have to feed them seeing that they dont eat algae and dont do anything except crawl on glass. Doesnt look like you got them from a good shipper either, he gave a wrong and bad description and he treated them like live rock.... *sigh* well its not your fault at least..... I just wouldnt buy from him/her again.