Many people have asked me what I used to instant cycle my new build. There are definitely many bacteria out in the market but after much research and speaking to Shawn Hale at Fritz Aquatics, Lance Ichinotsubo of Elite Marinelife by Captive Seas and Chris Meckley of ACI Aquaculture, I was sure that Turbostart 900 would be the way to go and I am glad that I did. Formulated specially for saltwater, this strain of bacteria is one of a kind denitrifying bacteria bacteria that simply works. Here in this video, Chris Meckley of ACI tells us how he uses them exclusively for his fish holding systems (2000 gallons each) when he bleaches them twice a year for preventive measures for possible parasites without any loss of precious fish lives. Have confidence, follow directions and use the trusted product that's being used by the pros. Enjoy!