Ok so I consider myself not an expert, but pretty knowledgable. I do my water changes every week (50 percent) And have successfully kept tropheus which I've heard is hard! For as long as I've remembered I've been doing water changes with a gravel vac which I thought was standard. I'm 14 but My back is literally destroyed from it. It takes me 20 mins to do one on my 40 gallon, and I also have a 75 gallon and a 30. Thats a long time spent waterchanging. It wasn't until I stumbled on A yt video earlier today that I learned about the python. This is life-changing. There should be some standard thing that tells new aquarium owners about it. It feels like being the punchline of a bad joke - I can feel you guys laughing behind your screens. How could I have been so dumb? I should have known something was up when Duanes said he does daily 50 percent water changes on his tanks. I feel so stupid. At least now when I buy this magical device. I think - I should be able to do daily water changes.