Ultra low nutrient system
It is achieved mostly by dosing or running pellets to create bacteria strands that will consume nutrients within the tank itself and thus reduce the amount we must remove through use of skimmer and other filtration.
I am using prodibio currently. Yesterday, prodibio spokespeople released a how does prodibio work thread.....it was informative if you can find the thread.
It was pointed out to me that zeovit zeolite rocks do not work the same way that bio pellets do. Apparently, the zeolite media actually strips the water of its nutrients whereas the bio pellets create bacteria much more like carbon dosing. This is why zeolite must be replaced every so often.
Personally, I think the prodibio method is the easiest way to dose to create ULNS.
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