You guys do not need a python. If your faucet has an end that unscrews to remove the mesh cap, then all you need to do is find a tube that is the right diameter that when you put it up the faucet, it seals the edges and then you just fill away! It's what I am doing, mine didn't fit the used python I got w/a tank. Main frustration is getting bored of my fish constantly in a loop. ugh.