Hi guys, I got a problem here! i have 2 stingrays and an aro living together and my only problem is when it is time for feeding! my aro is just too fast and he catches all the fish and my stingrays only get some. im afraid its inadequate for them.. what should i do? feed the rays glass shrimps which tend to land on the base of the tank and feed the aro live fish which tend to swim around the upper and mid section of the tank? secondly, how long can an aro last without food? thinking of starving him so he would go on pellets!