It can be done BUT BUT you must build up the nitrifying bacteria before you you put them in When cycling your tank dose with ammonia to 8-10
ppm, most dose to 4 and even thats kinda high but it's better to err on the safe side
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Most people create their own problems by not following the basics and refusing to stock appropriate to their system. Gregcoyote 2013
SPS = Stability Promotes Success