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Power House
The secret of longevity is a unique structure that enables an ideal microbial environment.
In an aquarium, the bodily waste of fish, along with uneaten food, dead leaves, etc. become the cause of harmful ammonia, degenerating the water quality.

The small microbes that digest ammonia are nitrosomonas. But they emit a harmful substance called nitrous acid. Nitrous acid, in turn, is eaten by small microbes known as nitrobacters, turning it into a comparatively harmless substance, nitrate salt. This cleaning of water by microbes is the nitrification process, and the microbes that perform the process are the nitrifying bacteria. However, when nitrifying bacteria alone clean the water, and they multiply proliferously, they may suddenly die en masse, rapidly degenerating the water quality.

In the ecological chain of the natural world, large microbes eat these small microbes, and fish eat the large microbes, resulting in a natural selection cycle.

In the vast natural world, this ecological chain maintains good balance, constantly keeping the number of microbes at a proper level, thus cleaning the water.

However, an aquarium is an artificial world, on a very small scale, making it extremely difficult to build a microbial world with a well-balanced ecological chain using filtering media, which significantly influences aquarium water. Thus until recently, it had been almost impossible to maintain good water quality over long periods of time.

Power House rings have rough texture on their surfaces. This is because they are specially structured with a well-balanced, consecutive matrix design of ultrafine pores ranging from 0.1 micrometers to holes of 1,000 micrometers.

This special structure is used not only on the outer surfaces, but inside as well, so that small microbes settle in the Power House ring's pores and large microbes settle in the holes, creating a microbial world with an ecological chain in the filtering media. In other words, each Power House ring can be considered a universe of microbes.

As a result, Power House products make it possible to maintain water quality over the long term and have gained recognition from professionals and enthusiasts, who favorably evaluate our products.

Nitrification and Aquatic Ecological Chain
Small microbes (beneficial bacteria) break down (nitrification) harmful nitrogenous compounds into relatively-safe nitrate salt. Large microbes exist by eating such small microbes.

The large microbes then become food for the fish. Only when a good balance of this kind of aquatic ecosystem (ecological chain) is maintained, can water become good aquarium water for its inhabitants.

Power House's unique structure becomes housing for microbes in the water, generating a balance-maintained ecological chain.

The image above is a model of the Power House ring surface which becomes a home in which microbes live and coexist. 1 chip: approx. 2 micrometers; beneficial bacterium: approx. 1 micrometer; large microbe: approx. 10 micrometers]

Special cellular structure that forms the microbial world
Power House rings have a special cellular structure, with pores of various shapes and sizes even on the inside. This special structure makes it possible for small nitrifying bacteria as well as the large microbes that feed on them to exist in good balance, enabling stable filtering power over long periods of time.
Structural comparison of Power House Hard Type (left) and ceramic ring (right).
Electron-microscopical images magnified 20X.

Pores per liter for Power House products
The graphs below compare the porous area by product size, per liter of Power House Hard Type and coral sand (left) and Power House Soft Type and seashore gravel (right). Power House products have numerous pores that are approximately 1 micrometer in size, which is suitable for beneficial bacteria to settle. S size products, in particular, offer extremely large amounts of porous area.

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