Sera internal filters F include Sera submersible pump. They are equipped with a large filter sponge and combine the advantages of an internal filter with those of a powerhead.
The sponge offers nitrifying bacteria, a large surface area and prevents smaller living beings (e.g.) young fish from being sucked into the pump.
Sera Internal Filters F are ideally suited to run a Sera C02 Reactor. They can easily be attached to the aquarium glass with their high quality suction cups.
