My friend set her 20 g up with that. After adding fish and small cuc, she ended up with an ammonia spike and had to rush to get something else to put in the tank. Of course her ammonia was high for several days. Who knows how much it harmed her fish. I also spoke to a friend who used to have a fish store. He told me that some of those products are marked up 100%.
As you can tell I'm pretty new to this. How long will it take to cycle and will I have to wait to put the live rock in? Not that I'm impatient although v excited but just want the best start