kensfish has fantastic prices. I buy from him, and also larry's tropicals on ebay. Larry's tropicals has free shipping on the 60hr heat packs that I use during the colder months. There is a really good sticky inthe classifieds section on how to ship fish/inverts. I personally ship larger snails (apple snails) out of water in damp polyfill to preserve their shells. Need a permit to ship apple snails as well.