Nitrogen cycle is one of the most important yet the most overlooked knowledge every fish keeper must have before getting into the fish keeping hobby. Fishless cycling is highly recommended before getting any fish at all.
Fish produce ammonia as waste, and ammonia is toxic. Without having the aquarium completing a nitrogen cycle, the fish will very likely die to ammonia poisoning with weeks.
NOTE: This full article has been officially published at - http://petskeepersguide.com/fishless-cyc...ogen-cycle
It includes the full details on the definition of fishless cycling and nitrogen cycle, as well as the reasons for doing it, plus the step by step instructions and tips to cycle a new fish tank.
(If you have any question or comment on fishless cycling or aquarium nitrogen cycle in general, you are more than welcome to post a reply).
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Fishless cycling ( nitrogen cycle ) of aquariums
Fishless cycling ( nitrogen cycle ) of aquariums 
