Python No Spill Clean and Fill Aquarium Maintenance System

[Aquattro]

I've used that before, years ago. It's very slow to drain, and messy. You can't fill the tank with it.

I just bought a hose, made a fitting that goes into the tank to the 50g depth and siphon to my bathtub. I then take the end of the hose, hook it to the pump in my mixing barrel and fill the tank. Much easier.