check out that thread its awesome examples based solely on the type of rock you have. if you have group A rock, shrimp works equal to fish poo, and ammonium chloride is better we show.
the exact nature of the fish poo in a bottle is its a fine cycle additive among many. I wouldn't use it because the organics it provides beyond ammonia can provide algae feed but algae is coming regardless, and we already have a fine system to deal with it. Additives aren't even needed to cycle, both the feed and the bacteria get in naturally, but boosting them in the various was saves time for sure. it can turn a 60 day cycle into a two week one, if that speed is needed.
collecting fish poo for bottling/cycle boosting will requisitely take in nitrifying bacteria along with the poo because its impossible to collect fish poo without collecting nitrifying bacteria, they exist in the environment simultaneously and never apart. nothing will cycle a group A aquarium faster than liquid ammonia and a bottle bac, they're both concentrated. fish poo and shrimp will work as well, slower.
I noticed in your thread we never found out what kind of rock you have, the cycle approach is polar opposite based on the type of rock we start out with. (group A gets ammonia, group B has ammonia withheld from it)
