The oasis starter bacteria are packaged as a fine-grained granulate in a stable and resealable hard plastic box. The can is sufficient according to the manufacturer for a pond with a volume of 10 m³. Now all you need is the content of your own pond know and away you go. Where it really does not matter because I do not think that you can overdose on the granules. It says rather, better too much than too little. The pond filter of the brand Oasis have specifically been building a small room where you can fill the bacteria pellets. Filters that this chamber do not have enough there to spread out the granules near the filter inlet. Thus, the bacteria can settle on the surface of the filter mats and multiply. After filling the bacteria we measured the water parameters daily. In our pond, which has about 8 m³ water content, the ammonia and nitrite levels had halved after about 3 weeks. And if now in the spring begins the natural plant growth really will probably have better results the water. Let's see how it behaves when the water gets higher sunlight.