If you are an avid viewer of the Youtube channels of Georg Farmer or Green Aqua, you could not avoid the fact that they are promoting a new line of Oase aquarium filters. Oase Bio Master 250/350/600 and there Thermo versions.
This is a very interesting solution for people who are not afraid to try something new and check out new technological solutions. These filters have an easy to clean pre-filter and a built-in heater (Thermo version). Both of those innovations are extremely helpful in reducing the number of equipment inside of Our tanks and maintaining of aquatic systems.