This is my first time with trying to build a saltwater reef. I have a 29 gal
biocube. Bought live sand, live rock and prepared sea saltwater. I removed the balls from filter and put in charcoal in a bag and purigen in a bag. However, the bag the local fish store sold me had too large of mesh and purigen entered tank. It is all over my rocks and probably the sand. I took it out because I read one doesn't use it during cycling, but it is still all over in tank .yesterday put 2 hermit crabs in tank and a few snails to be on cleanup crew. They dies within hours. I think they are eating the purigen. Can that kill them? I don't know what to do now. Can anyone advise me?
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