• Randy

Ricardo7341

Good afternoon! If you choose 30 liters, take an empty aquarium, hang a backpack on it, and you can put it in there. The filter will work for both cleaning and circulation. Small volumes can also do without a skimmer during water changes. If you choose one with a built-in rear sump, there are ready-made solutions, for example, MA. Or you can make something similar out of glass. Tap water is not suitable; you must install an osmosis system.