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ive noticed that sometimes my birdsnest corals will have some but not all polyps closed for parts of the day. Im talking maybe 20-30% of them closed. Anybody know what that means?
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What does it look like at night? Do you phyto or roid? It is probably just a flow thing, strong or not enough I'd look at first.
Thanks. Do polyps close when they catch food?I've never had a sour apple, so I can't say. Most nests branch out and don't trunk below. Reef chili is dry phyto rich, green if you mix it w/ tank water and let it set in a shot glass. New growth is priority # one for nests though. Feed activity at night is a healthy sign.
Thanks for the info... im planning on adding some additional flow. My tank is barebottom and i have one mp10 cranked up to almost max in a 18x18x18 cube but there is some dead spots due to the rock work.Yes, those are fingers that catch the food to pull it in. Saying that, the coral skin itself feeds off your lights. The flow keeps food flowing to the opened polyps, and also blows off mucus or slime the coral emits.
Dont have any pics of it right now. Ill try and grab some tomo when the lights are on!Throw some pics up. My tank right now is that size.