Dennerle FB1 Substrate Start (50 GMS)

Dennerle FB1 Substrate Start (50 GMS)

FB1 SubstrateStart is a highly active mixture of selected bed bacteria. All you need to do is spread it onto the layer of DeponitMix and cover it over with aquarium gravel. You can also layer this on the base of the aquarium before adding other soils.

FB1 bacteria are activated immediately upon coming into contact with water, thus transforming the bed of the aquarium into an active bio-filter. Living humus bacteria pre-digest nutrients to convert them into a form that plants can use. For a quick, reliable start.