100 lbs of live rock should already be sufficient. I'd look at other reasons. How's your nitrate level?
IF you add more then you can pretty well count on yet another cycle unless you fully cure the rock outside of the tank.
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150 gal Custom. Born 5/7/07. 50gal, 29gal, 20gal Sumps. 30gal Frag Tank. ETSS 800 Skimmer, Deltec APF600 Skimmer. PFO Solaris Lighting on Display and Frag Tank
My Tank Thread
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