75g start-up ?

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Hinds04

Aquarium Advice Addict
Joined
Mar 2, 2010
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Getting ready to start up my new 75 gallon tank. My question is, since I will only be starting with a couple green chromis in the tank can I start with only about 10lbs of live rock? Then add more LR with the other fish that will be going in. The live rock is from a tank that I have had running for several months now. Also I plan on having 5 chromis. Can I add two then 3 or whatever, will they still school together?
 
Usually if you add them at different times they will fight IME. Are you using them to cycle the tank?
 
yes, if it needs to be cycled. I will be using live rock that I have had for a while.
 
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