Dennerle FB1 SubstrateStart, 50 g

The FB1 Substrate Start is a bacterial starter in powder form and suitable for substrates in freshwater aquariums.

Bacteria play a crucial role in the biological balance. It is these invisible helpers that continuously eliminate fish excretions, plant and feed residues. Each type of bacteria specialises in certain substances. Therefore, only the "right" bacteria guarantee the quick and safe breakdown of the waste materials typical of aquariums. A new aquarium or fresh filter material is almost sterile. Without active help, it can take many weeks for a stable bacterial fauna to develop that will reliably keep your aquarium in good shape. Fish-toxic substances such as ammonia and nitrite can accumulate and endanger the life of your fish. Tap water for human use must also have an extremely low bacterial content and is therefore disinfected. Fish need "living water" - which you can produce quickly and easily with the FB1 Substrate Start. The FB1 Substrate Start is a highly active mixture of selected soil bacteria. You just sprinkle it on the deposit mix layer and then cover it with aquarium gravel. The FB1 bacteria become active immediately when they come into contact with water, making the substrate an active bio-filter. Living humus bacteria prepare nutrients in a plant-friendly manner, so you can ensure that your new aquarium is started quickly and safely!

Our expert Oliver Knott​​​​​​​ recommends:

With the FB1 Substrate Start, you can turn your substrate into a highly active bio-filter, which ensures that you can use your first fish in no time!