If the gravel vac has the ability to screw into the python hose, then I can imagine it would.... Hmm... you're giving me ideas to see if I can make a smaller attachment for my python. It might help out with the algae problem in the 10 gals....
Neat fact about the python is that it can screw into a garden hose. The eastern US has been in a drought situation now for a few months. Since I remove about 60 gallons of water from my tanks each week, when we haven't had any rain I screw the python hose into a garden hose and stick it out the widow. Our lawn is one of the greenest in the neighborhood!