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I watched a couple of TV shows on the Discovery Channel etc...over the past several weeks that dealt with coral reefs. Both shows pointed out that stony corals derive 90% of their nutrition from their Zooxanthellae. IMO as long as we get a little detritus up in the water column (not difficult in my tank ), and have adequate lighting, then no one should be concerend with these guy's starving.
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I agree, but the guys that don't have enough nutrients in their BB systems are starving the zoo........yes? I assumed the bacteria taken in by the corals is nitrate/phos limited & the zoo suffer which causes the coral to bleach.......... or there's not enough zoo in the coral to feed & sustain growth. Or am I way off?