Accually I believe they grow 24". At the wal mart that I go to, it does say that they grow 20" and are compatable with silver dollars, mollies and swordtails, but that surprises me that it says that mollies and swordtails are compatable with them because I could imagine a 24" fish having the ability to eat a molly or a swordtail.adamzieger said:they get up to 20" long. and are semI Agrissive. I Seen them at wal-mart today and they had a chart on them
said nothing about tank mates n stuff. it looks like a mean fish, its Worm like. I don't think it would be a good mate with any aggrisve fish oscars like to pick on fish also. only more mean fish then the oscar ide ahve to say is red devil but I think if u keep the dragon in a 30+gal tank by him self he would be okie if u get them good food. I as tempted to get one but I got to many tanks on the go right now.
55gal over stocked.
setting up a new 75 gal tank I got. to get the overstocked one a new start.