what substance is the best to add to a new tank to get the nitrogen cycling? also how long does said substance take to create the habitable environment for my fishies?
Well I'm pretty sure thats what your talking about. 99% of the time the bacteria in the bottle won't work. The reason for this is by the time you get it all the bacteria in the bottle is dead so your just wasting your money. Read the links in this link http://www.monsterfishkeepers.com/forums/showthread.php?t=224559
Id suggest doing a fishless cycle using pure ammonia.