There is a very easy way to open the filter, there should be instructions in the kit but I found the instructions on YouTube as it was very difficult for me to open them myself. The spout moves from left to right, slide it all the way to the right, place the opening tool on the device and push in the opposite direction each time. Also, the complaints about algae are related to the transparent body option and light penetration, I think. have noticed that our health, including that of pets, has improved after using this device. More energy and vitality.
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