if it was me i would cook the rock for a min of 3 months. AKA cycle it as per usual but in the dark.. NO LIGHT AT ALL... this will cycle the rock and the lack of a photo period will kill off any remaining algae spores etc.... and yes dry or not there is still living ( OK NOT LIVING BUT WILL SEED THE TANK) algae on it... i have started with dry rock a couple of times and still come up with valonia and red turf....
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72 Gallon Bowfront Reef.. Hardware:2x250w Luminex Elite HQI Reflectors (Phoenix Hexarc Bulbs), Galaxy 2x250w Electronic ballast, Euroreef 130 Skimmer, Sedra KSP 7000 Retern... Live Stock: Pair of Hawaiian Flame Wrasse, Leopard Wrasse, Pink Streaked Wrasse, Pair True Percula Clowns, Potters Angel, African Flameback Angel, Orange Fin Tomini Tang, Yellow Assessor, Tailspot Blenny, Purple Firefish..
45 G FW Asain Barb Community tank.
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