The EHEIM professionel 4 EHEIMs best external filter but now with an integrated ‘emergency’ button. They have adopted the many advantages of the professional 3 series – powerful performance, optimal energy efficiency, quiet operation, priming aid, safety hose adapter – but they have also improved the technology by incorporating the new ‘Xtender’ button. In the event the output is reduced due to the fine filter media blocking, the button can be adjusted to redirect the flow. The biological filtra

#werbung powered by Olibetta the aquaristic online store A quick tutorial on how to build a surface skimmer from an internal filter. I need a relatively strong skimmer for a 2,000 liter aquarium, which is why I once chose an XL version, the Powerline from Eheim: https://www.olibetta.com/eheim/internal-filter-powerline In theory, you can build it with almost any internal filter. The larger the slots, the more slides into them. If you wanna catch duckweed, make it big enough. And if you use the fi