Wait until your cycle is complete before adding any fish or invertebrate.Thank you this is all very helpful and also I can not add any fish till the 1st cycle is done or how does that work? Can bottom fish go in before the cycle is done or schooling fish like bleeding hearts or should I just wait before adding anything in? Lol sorry for the questions but I want to get this right so I dont lose that many or hopefully no fish at all. Thank you
Maybe my zebra danios were just weak but one of my tanks went through a mini cycle and no fish died (platies, guppies, WCMM) apart from the zebra danios.