all arowana tank need a heavy cover. As they are well known jumpers. even if you get like a 5feet high tank, its no use, coz they are top tank dwellers so it makes not much diff if it is 2 fee or 5feet height, they still will jump.STONEDFISH said:Only 2 feet high? Don't these guys like to jump out of tanks? I guess it wouldn't matter how tall it was, it could still get out if it wants to.
for mine, i use glass as covers.
http://www.arofanatics.com/members/zhuangsw/
you can see a picture of my aro tank under the folder rainbow rtg.