So this thing will clean and fill your fish tank without ever making a mess. No more buckets and dirty water in the house. It has a pump you run in your sink that can both draw the water out and then when you adjust the water temp to your tank fill it back up.
All your dirty water goes right down the drain. It has a nice gravel cleaner at the end and a shut off valve to stop water flow to move from tank to tank.
Check out their website at Python Products
Just look at how clean my tanks are!