ok my question is 2 parts,first i want some yellow labs in my tank ive read there pretty mellow,will they fare ok in with 2 blue mbunas,2 red zebras,1 johanni there all about 1 1/2 inches now.would electric yellows be better?whats there temp?question 2 ive been looking around lfs for yellow labs and electric yellows ive found some but there either smaller or bigger then mine,how small is to small to add in a tank compared to what you already have? thanks guys.p.s im pretty new so if im being a dumbass just tell me lol