Review on 🐠 Gravel Vacuum for Aquarium: Long Nozzle Siphon with Priming Bulb, Flow Controller, and Water Changer - Fish Tank Cleaner Vacuum - Aquarium Gravel Cleaner - Efficient Siphon by Amanda Owens

This aquarium cleaner does what it is supposed to. If you have kinks in your hose, remember that the blue clip on the hose can be used to prevent the hose from kinking. It can also be used to stop the flow of water, which I think might be its original purpose, but I don't think the hose can handle much of that in the long run. Also, to stop the flow, it is enough to take the working end of the hose out of the water to break the siphon (i.e. let some air into the hose).