Agree with 1journeyman. If I follow correctly;you used water from another tank to "cycle" a new tank? When a new tank "cycles"; the water is not what is being cycled--it is the whole tank environment that needs to "cycle". Mainly, whatever is being used as a biological filter base (live rock,sand, filter media, etc---where the beneficial bacteria colonys develop. Only time can do this, although there are several products that claim to help. (I have had poor experience with them.) If I'm following this discussion correctly, then my tap water is fully cycled-because it has no ammonia,nitrite, and very little nitrate. But it will have dead fish if I don't take the time for bacteria to colonize and do their work.