How big are youre little corn's???If they are hatchling's, then plastic shoeboxes or if it's for display, then a 5-10 gallon aquarium(depending on size) would work excellent...
If they are juviniles, then I would suggest a 28qt or bigger plastic storage box or if it's for display, then a 20-30 gallon aquarium for them to grow into...
If they are adults, then just go with the same housing as the juviniles...IMHO
hth