So we've had a change of plans. I have a 5.5 gal that I ordered a Mexican Dwarf Crayfish for for my son. We had planned on just the Crayfish and a Nerite Snail. I went to Petco today to try and find some new Tetras for my 29 gal and who did I see in a filthy little cup? Yep my Betta, Turbo who I had rehomed about a month ago cause I thought he was killing my Amano Shrimp. Needless to say I felt horrible and bought him back and he is now back home with me. Here's the issue we might have. He is in the 5.5 gal that my sons Crayfish is supposed to go in. I'm hoping we'll be ok to keep them together. Here's a pic of the tank setup. I got the castle cause it should be small enough that the Betta can't get in, but the Crayfish can. I think I'll get another one as well so it has 2 caves the Betta cant get into.