Bests & Worsts Reviews from Amazon

I purchased this product at Petsmart the other day after reading all the comments. I know that the design should be working so I bought is for my aquarium. This product DOES work, and will stick on very tightly. The problem would be the method of setting this item up; you should hydrolyse it first in water then push it against the glass ABOVE the water, not in water, which means there will be a bubble in the middle of the suction cup. Then move it down under the water surface to the place you want. It will stick to the glass even tighter after a while and hard to be moved again. The reason of these methods is due to the function of the suction cup. The suction cup is designed for using the atmospheric pressure to push the cup towards the glass tightly, since the atmospheric pressure will be greater than the air in the cup, so a small bubble is required in the middle. If you set this item in the water without any air in the middle, the section cup will lose its function because when you press it in the water, the internal water pressure will almost equals to external water pressure, due to the properties of liquid, which is harder to be depressurised. I hope this will explain the reason some people thought this item wont work. Moreover, Betta fish does also rest on it :)