My black aro has almost outgrown his tank so in a few months him and my pbass will get my 8'X6' pond in my garage. How high do I need the sides to be above the water level to safely keep the aro in the pond. I know there are known to be jumpers. I was thinking 1.5-2ft above the water level. Is this enough to keep him in there or should I just cover the pond?