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rgentry123
02/28/2010, 07:41 PM
the polyps on a lot of my sps corals are retracted-any ideas why or how this could have happened? or how get them to come back out again?

params are -->

SG 1.026
ph 8.2
nitrates 5 ppm
calcium 500
temp 79
phosphates arent registering at all it seems

i have a regal, CB and an eibli x halfblack hybrid angel but i have never seen any of them pick at any coral in the tank.
luther1200
02/28/2010, 07:44 PM
What is your Alk? And I'm sure you know this, but just because you don't see them nipping doesn't mean its not happening. Aside from that I would say maybe there not happy with the flow, either to much or to little.
rgentry123
02/28/2010, 08:50 PM
What is your Alk? And I'm sure you know this, but just because you don't see them nipping doesn't mean its not happening. Aside from that I would say maybe there not happy with the flow, either to much or to little.

yeah, i know they still could be but i watch the tank a LOT, and ive never sdeem them show any interest in corals. i have 3 koralia # 4's in my 110 tank. do you think that is to much flow?
luther1200
02/28/2010, 10:01 PM
No thats not to much flow. Actually maybe you need some more. I noticed I started getting a lot more PE after I added my MP20. I think the unpredictable flow is just as important as the amount. Do you have them on any kind of wavemaker or anything?
luv4qt1004
02/28/2010, 10:36 PM
same here...sps are hard to care for. hard to figure out what is going on
Am07f
02/28/2010, 10:42 PM
Yea, it could be your alk or maybe too much flow?
driftin
02/28/2010, 10:45 PM
Do the polyps come out after the lights are off?
KisselDanny
03/01/2010, 12:58 AM
Im having the same problem with my yellow tort. Almost no PE during the day but at night it opens fully.
rgentry123
03/01/2010, 06:27 AM
the polyps come out a little more at night but not fully. i turned off 1 of my koralias to see if maybe too much flow but somehow i doubt it. i dont have a wavemakerfor them so maybe i can try somthing like that.
njfish77
03/01/2010, 06:44 AM
what does it mean if you have more PE during the day than night?
reefdogg1107
03/01/2010, 09:32 AM
what does it mean if you have more PE during the day than night?

IME this is usually due to a fish picking during the day, so at night when the fish are not out roaming about they extend. Keep a close eye on your fish during the day or move ther coral somewhere the fish might have a harder time getting to.
advaquatics
03/01/2010, 10:09 AM
Whats your magnesium levels @?
rgentry123
03/01/2010, 05:14 PM
Whats your magnesium levels @?

Not sure... That's the one test I don't have. Could this potentially be my issue?
sjfishguy
03/01/2010, 05:26 PM
I would bet its the angels. I had a CB that I swore never picked, but got rid of him when I switched tanks. The PE is amazing now. There are several theads about angels and PE and many people report similar results as me. I would say its the angels, and with that many you will never have any PE.
xtm
03/01/2010, 05:41 PM
what does it mean if you have more PE during the day than night?

It means nothing. Most corals have more PE at night because they usually feed at night.