I think DM's are over 20" and still going... I have seen cichla in public tanks around 24"! If they have the room, they will grow!Dark_Angel;763365; said:Whattt???? 24"=60 cm....hmmm.....have u seen the PB with this size in a home aquarium???? I think they can reach this size only in a very big tank such in a public aquarium....is'nt it?