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Originally Posted by Snappy
If sps only need to feed on light, why do they ( acro's for example) extend their polyps when the lights are out? I just assumed they were feeding. Why do some of the other sps (mycedium (spelling?) for example) send out sweepers? Is it only to attack other corals? I thought they are trying to feed as well.
I have experimented with feeding and not feeding and it seems my coral's get brighter, look healthier and grow faster when I feed. Is it my imagination? Please tell me if I am wrong. If I am wrong I'll not bother feeding them and start saving some loot.
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Mine extend theres during the day and retract them at night so who knows.. maybe your not giving them enuf light
anyways they will also eat bacteria and such they can get from the water column so maybe thats why they are out.
Steve
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