The gravel cleaner is too large for this pool, I could not trigger the automatic suction. In larger pool but it could function without killing fish, uproot plants or overturn the Deko. But that is not the end, because the unique suction by mouth is not a doomsday.
The supplied hose but is too inflexible, as if he had been exposed to years of UV light which would have destroyed the plasticizers in plastic. Every movement of the gravel cleaner is therefore transferred to virtually 1to1 stopcock so that the hose knocked over a light bucket. It's some water in a bucket, hose simply jumps out of the supplied Schlauchklip. Of course, then the end of the hose ends up in the apartment and not in the bucket (Murphy's Law). Turning the gravel cleaner to suck in the aquarium with the 90 ° elbow the corners, because this hose hardness hardly possible. On top of that he already "predetermined bending points" has the type of packaging that easily bend the hose so that the water flow does not generate sufficient suction for cleaning.
Last but not least is with me also the shut-off valve is leaking, the flow is indeed stopped but it trickles out of the shut-off valve so that you should quickly change the bucket.
I can not recommend it, but forgive two points because the set might work better in larger pools.