Two weeks ago, I went to my LFS and asked the guy for some gravel, to help cycle my 55 gallon. He then pointed out a shelf with different bottles Call " Superbac Aquarium LIVE nitrifying Bacetia." There were different size bottles for different size tanks. It said add live stock before so I purchased, a couple Angels, and bought an 80 gallon bottle for $22 dollars (I used some of the bottle for my breeding tank.) I got home added my Angels to my other fish, waited 24 hours, added the superbac, and in a week it was cycled. It did make my Nitrite spike up a bit, but not to much. I read online that all the other peoples tank got cycled within three days, but every time I read a review, everyone had 100% success. So, I would just like to recommend this to people who want to quickly cycle their tank. NOTE: You only add it one time; They have botles for fresh and salt water.
Heres the link, you can find a distributor near you.
http://www.naturbac.com/nbhome.html