Description : Are there any kinds of crayfish that are inexpensive (under $20) for a small freshwater fishtank?
Last Answer : answer:A nice idea for your bother, points for that. :-) Crayfish are fresh water crustaceans and Lobster are saltwater crustaceans. Check with your local pet stores, Petco, etc. and also, you can google ... for them, it is cruel to neglect ANY creature, large or small. Good luck in your search!