Main thing is to keep them cool. I keep them in either the garage or basement in a 20 gallon aquarium. I use a few inches of sand in the bottom and then put one of those square glad containers full of saltwater in there also. Put a few pieces of bread in there with them. I dip it in saltwater first so that its easier for them to eat. Youll know if any die because youll smell them. I just get a 5 gallon bucket of saltwater and change the water every day or so.