bostonpottery
Aquarium Advice Newbie
I bought two butterfly koi last year at 2 inches hoping to keep my bichar happy but not allowing him to eat them. Well the Koi art 5 and 11 inches now in my 40 gal breeder tank. Had to move the bichar (polypterus senegalus) to my zebra danio tank, another story. How big will these koi get in a 40 gal?