My parents wouldn't let me do the ammonia drip-fishless cycling method on my 55, (they said it would mess up the water...) so I decided to 'clone' my 20 on my 55. I got 3 Zebra Danios. I used a LOT of mature media from my 20 in the 55, about a pound of gravel, multiple decorations. It basically went like this. First day, no ammonia, second day, .25 ammonia, 3rd day, 0 ammonia, .25 nitrite, later that night 0 ammonia 0 nitrite, 5 nitrate. I had to go somewhere for 4 days but when I came back, the stats were the same. I moved in 3 fish and tested the stats and they stayed at 0. I think I will use this method again because I had successfully cycled the tank... in a week!
What is the quickest you have ever cycled a tank?
What is the quickest you have ever cycled a tank?