Just wondering about these guys, I kno they need a big tank, and there sizes but are the perticularly fast growers? im not asking because id want to keep them in a smaller tank, I would sjut want to make sure if there in with other fish how fast they seem to grow to make sure their tankmates dont outgrow or undergrow them and becoem food haha. most likily and thinking if H vittatus. also if u get thme young is it hard to get them on dead foods? also how much are these guys generaly running for price range? thanks!