Red Sea Reefer build in Show Off Your Tank Posted September 9, 2019 · Report reply 1 hour ago, 110reef said: If you are reading ammonia, then do not put livestock in the tank. Ammonia should always be zero. If not, your tank has not cycled. The last thing you need is a big waste producing fish like a tang at this point! oh yeah, i didnt plan on it. i was just wondering which would come first, the ammonia dropping or my lfs being able to get a small kole tang.