I have a python.. and it sits unused .. because our faucets aren't compatable.. so 5 gallon buckets are my best friend. do 25-50% WC's 2x a week on my tanks 'cept my planted which gets a 50% 1x a week ( also when I do a big fert dose) .. I simply syphon/suck up poop filling how ever many buckets I need ( depending on tank) and then re-fill w/ buckets.. ones getting dumped into the tank while another is filling in the tub... I use aquasafe water conditioner, we have very high levels of iron and other heavy metals in our water... and I've had great results useing it.