Corailline, thanks for the input. Yes, it is an Innovative Marine mini 38 white kit. Appreciate you pointing out that there's more to 0 ammonia and 0 nitrites to really consider a tank cycled. I'm interested in knowing when we know our tanks are cycled then. If parameters are not all we need to consider, what else I'm I missing? Just time? I have measured 0 ammonia and nitrites for 6 consecutive days now. Diatoms are appearing on substrate and LT. Nevertheless, I will follow the advise and just get a couple of critters for now. My main concern is to loose beneficial bacteria from a lack of feeding source!