Is latex paint safe to use for my situation?

[deranged chipmunk]

Thanks everyone! I will go ahead and paint tomorrow. I will transfer the little ones into another tank and cover the painted tank to be with plastic wrap as well as the roach tank. It says completely dry in 2-4 hours, so should I wait longer than 4 before placing them back?

only you will be able to answer that. if the paint is dry and no fumes, then they should be safe for a happy homecoming.