Are these fast-growing loaches like yo-yo loaches and blue botia loaches, or are they slow-growers like clown loaches?Berdmorei loaches are awsome! I have a Shoal of 12 (+ a big Blue that thinks hes a berdmorei). Have kept them with Exodons, Rope Fish, King Kong Parrot, Synodontis, Belly Crawler SP. They are a sight to see and hear in a shoal, zipping and clicking around the tank expecially around feeding time. My biggest ones are probally around 6-7".