For my Black Eyed Leaf Frogs I use a high pressure system in the same tank that they live in. It is a 50g and I have one spray nozzle on each end. The mag-drive pump is under the tank in the tank stand. It draws water from the pond in the enclosure through polyethelene tubing down to the pump and then back up through the nozzles. It creates a heavy rain. I run this for 5 hours a night for 5 nights and then leave it off for a month.