So i have a couple of pixie frogs, And i have them in a 50 gallon with a 5050setup, Since the substrate is always getting into the water and the frogs defecating, i tried cleaning the tank by hand picking there poo, but I cannot keep up with them kicking substrate into the water also. I cannot siphon the water due to the low levels of water. Please someone give me any good ideas or simple ideas just so im not working too hard for something so simple. Thank you!