I would advise against a few pea****s, chances are youd have one nice ones and 3 colored down beaten up ones, a mix of pea****s and haps closer to 10 would be better, or just 1 male and 3 or so females of pea****s, wouldnt add pseudotrophs with pea****s too as they are too agressive in general for pea****s, yellow labs will usually work though,
What size tank were you thinking of getting?