I am in the process of cycling a new 150 gallon tank. I have 150 lbs live rock, some live sand, skimmer, and the usual other equipment. When looking at the "Clean up Crews" they seem to be sold according to tank size. Will adding a "150 gallon clean up crew" to a new tank raise ammonia levels too quickly? It is obviously cheaper to buy them all at once, but not if you are going to kill everything.



