The weird thing with this device is that anyone who has a fishtank knows that those little things just won't work correctly. Well this one is dead cheap and does work. I guess you have to place the flakes in a certain position ideally or make sure they are not the big ones, but it really does work. I use it very frequently for 3 days and sometimes for 14 days in a row and it is not cluttered or anything, it works and the fish are very happy. I bought two of the same model. Setting it up is very easy.
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