Hi my name is Chris. I am new here. Couple questions... I currently have 2 red zebras, 1 blue zebra, 1 yellow lab, 1 albino socolofi, 1 johanni, and 1 maison reef in a 50 gallon currently... assuming all proper filtration and water changes... how many total mbuna should I keep in a 50 gallon? Assuming all are full size. Also, debating on possibly getting a 75 if the 50 is too small... assuming proper filtration and water changes, how many mbuna should I keep in a 75 gallon. Assuming all are full size. Thank you!