I am planning to get a baby 3 to 4 inch black aro tommorrow but i'm worrying that it might slip through my plexiglass divider. I made my divider myself so the doesn't have the perfect dimentions to fit perfectly across both sides of the tank. There are 2 parts of the divider that is a bit 'loose" so there is are TWO quarter inche gaps between the divider and the tank (one on each side). Also my divider has a 2.5 inch openning at the top. Could the baby aro jump across the divider where my armatus is? What could I use to block the opennings? Can i just lower the water level? How high do baby aros jump?