Is python really needed? I just use a normal hose, insert 1 end into the water, suck the other end and water will start flowing out. Then you can use the end in the water to do vaccumming
Yeah, but then you need to refill it. How are you planning to do that? Buckets?
With a Python you turn a valve and start refilling it.
I don't use a python, I suck to siphon out the door, then a DIY'd connection to the kitchen tap. If I had to keep using buckets...Well...I wouldn't a fishtank anymore.