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The easiest way is to get a small number of extremely hardy fish, and put them in the tank for a few weeks. This should cycle the tank.

AnswerThe best way is to do a fishless nitrogen cycle. As the name suggests, it is to cycle the aquarium without any fish in there. You need to have a source of ammonia, it can be done by simply adding fish food, or pieces of raw fish and shrimps. However, the most recommended way for a fishless nitrogen cycle is to use pure ammonia. Keep adding ammonia into the fish tank to ensure a concentration of 2~6ppm on daily basis. You will need a liquid water test kit for it. Once both ammonia and nitrite readings are 0ppm after you have added new ammonia on the same day, your tank is cycled. The entire process of fishless nitrogen cycle can take up to 6~8 weeks. There are certain tips to speed things up and cut off a few weeks.
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13y ago

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