do not feed prawns.. though it's high in calcium but then prawns then to stay at the bottom of the tank which makes your aro looks down all the time...in time it will cause your aro's eye to bulge downwards eventually falling off. serious...give floating food... just a piece of advice

i used to put 2 ping pong balls in the tank... to make the aro look at it... hahaha just to ensure the eyes are nice

hmmm well all my aro's are good using the method i mentioned... well maybe you have a point.. but i'm not too sure if it's genetic