CichlidFish.com - Fish That Think.

I just completed setting up my 125 gallon tank and would like to know how long does it take to cycle and how soon can i add fish.

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great expectations are things that refuse to materialize and a promise never kept.

all depends on different stuff. for a full cycle (ammonia, nitrite, nitrate) i'd say around a month.

if you want to try to speed it up, you can try that cycle bacteria stuff. i dunno if it works, and theres many mixed opinions..

and as for the adding of the fish, i'd do it after the full cycle has been complete. of course you can try any time, but im sure you wouldnt want any dead fish on your hands.

better to be safe than sorry

And you don have to add all your fish at the same time. I always add some smal fish and se if they make it for one week.