Do you make an aquarium gravel vacuum that has a motor?

I tried to use the type that connect to the sink, but it has horrible aspiration and leaves a lot of things in the tank. Even if only water is sucked out and had to fill out by hand, which would be fine with me. I have a tank of 40 to 50 gallons and maybe a total of 10 goldfish. Does anyone have an answer?

I had some of the siphon cleaning standard and most have been pretty useless, but the last one I bought is excellent and the only thing I always recommend. Gravel is Tetratec Gc50 cleaner, which will be the right size for deposit (which they do in three sizes). Has a good short tube, but all I could add an extension to it easily. Suction on it is very good, my tanks are easy to clean now.

Vac-pumpless inverted aquarium