Red Thai Crab ....refugium?

[subzero772]

Hi i recently bought red thai crabs, two of them, and i noticed while doing research they dont need air to survive, but they like it, and it helps prolong their life and somehow keeping them a bit more healthy.



I would like to know if it's a possibility i could build them a getaway refugium equivalent to this crabs standards so they can get some air and chill out for a little while during the day or a whole day perhaps? They cant get out of the water at all.


Any info or suggestions would greatly be appreciated! I'm trying my hardest to become a good aquarium owner haha... Thanks for reading!