They would be ok for one leo, MAYBE 2, but I think they need more space than that really. Personally I would put 2 or 3 in a 36x12 at the smallest, pref 36x18.
And please please keep a close eye on more than one at all times. We have had to separate one of ours tonight as she has been bitten, despite being introduced gradually, all having seperate hides but sharing regardless and being fine and eating etc for 2 months. Poor blizzy.
well the bigger the better oviously. 24x12x12 inch is big enough for 2 nor more. I am getting a 40x12x15inch tank for mine and will have 3-4 in it.But remember 1 male to each tank!
Hope you set up looks good