i have 2 aquariums, wife says no more. i currently have a container in the garage i and breeding snails in and a 5g bucket for feeder crayfish and crabs for my puffer. winter is comming and the garage will begin to get too cold for these containers. i have a 12"x8"x6" in tank regufium i can use for the snails but i need ideas for keeping the crayfish and crabs in the tank but out of the puffers reach. i buy about a dozen total and hold them for 2 weeks until they are gone. the crabs and crayfish will easily climb out of the refugium. are there any products out there like the refugium with locking lids or creative ideas that look a little better than tupperware with holes?