Plate coral

langel · 01/18/2008, 10:03 AM

Does anyone know why my plate coral would be turning white around the edges?

m2434 · 01/18/2008, 10:15 AM

It's probably dying... Do you feed it? Plate corals are only semi-photosyntetic and should be fed almost daily. They also shouldn't be kept on rocks as they are prone to tissue damage.

Pics could help.

rustybucket145 · 01/18/2008, 10:23 AM

Sounds like it's growing to me. Hard to tell without a pic. This is also known as the 'growth ring'. Basically the coral is creating the skeleton first so the polyps can inhabit it. make sense?

reeferman06 · 01/18/2008, 10:58 AM

yep, like monti caps

discocarp · 01/18/2008, 11:04 AM

Pics? What kind of plate?

m2434 · 01/18/2008, 11:18 AM

It's tough to tell. IME if you can see the skeleton it's dying... but a growth ring is possible, but usually not seen do to soft tissue covering it... If there isn't enough soft tissue to cover it, then it may be dying.... get the point - we really need a picture and more info.

discocarp · 01/18/2008, 11:27 AM

They can make comebacks even with visible skeleton. What I'd be looking for is trajectory. If its gone from healthy to showing skeleton, its going in the WRONG direction and something needs to be done. But, once they have gone downhill, they can make great comebacks if the conditions that caused the decline are fixed. I've got a fungia right now that's on its way back from near death. Almost half the skeleton was showing. Now that its in good, stable tank conditions again its starting to come back nicely.

discocarp · 01/18/2008, 11:32 AM

Oh also, one other correction from above. Fungias are fine on rocks. They're native to rubble zones. I still keep them low so they don't fall when they inflate themselves, but its the fall that's the problem not the rocks. I also rarely if ever feed mine and they still grow wonderfully.

jeeper xj · 01/18/2008, 11:35 AM

mine has white line and its growing, but if it looks like its deteriorating, it is..

m2434 · 01/18/2008, 11:54 AM

Quote:

Originally posted by discocarp
Oh also, one other correction from above. Fungias are fine on rocks. They're native to rubble zones. I still keep them low so they don't fall when they inflate themselves, but its the fall that's the problem not the rocks. I also rarely if ever feed mine and they still grow wonderfully.

Rubble is fine. Large flat rocks are sometimes okay. In nature they are found on rocks, but the rocks there are much bigger... In aquariums the rocks typically are not large enough for them, and the tend to fall down or bump into other corals when they move around. I strongly recommend against keeping them on rocks...
IME people occassionally, but not typically, have success with them on rocks.

01/18/2008, 10:03 AM	#1
langel Registered Member Join Date: Jan 2007 Location: Michiagn Posts: 50	Plate coral Does anyone know why my plate coral would be turning white around the edges?

01/18/2008, 10:15 AM	#2
m2434 Registered Member Join Date: Jan 2004 Posts: 2,171	It's probably dying... Do you feed it? Plate corals are only semi-photosyntetic and should be fed almost daily. They also shouldn't be kept on rocks as they are prone to tissue damage. Pics could help. __________________ Our imagination is stretched to the utmost, not, as in fiction, to imagine things which are not really there, but just to comprehend those things which are there. ~Richard Feynman

01/18/2008, 10:23 AM	#3
rustybucket145 Registered Member Join Date: Jan 2006 Location: valdosta, ga Posts: 3,707	Sounds like it's growing to me. Hard to tell without a pic. This is also known as the 'growth ring'. Basically the coral is creating the skeleton first so the polyps can inhabit it. make sense? __________________ 400gals of various tanks in the same system. Current Tank Info: 2 175w MH, 2 VH0 Actinics, Lots of Live Rock, tons of copepods, a Fat Mandarin Goby, Niger Trigger, Yellow Tang, Falco Hawkfish, Bi-Color Pseudo, numerous soft, SPS and LPS Corals

01/18/2008, 10:58 AM	#4
reeferman06 Registered Member Join Date: Jan 2006 Location: Raleigh/Down by the river side Posts: 440	yep, like monti caps __________________ Marrel Current Tank Info: 55 gallon reef- 2x 110w Actinic VHO's 2x 175w 14k Metal Halides, Pair of Saddle back Clowns, SPS, Colt Coral, shrooms, LPS, Bubble coral, Hammer, Crocea, Zoanthinds, Xenia, Blasto

01/18/2008, 11:18 AM	#6
m2434 Registered Member Join Date: Jan 2004 Posts: 2,171	It's tough to tell. IME if you can see the skeleton it's dying... but a growth ring is possible, but usually not seen do to soft tissue covering it... If there isn't enough soft tissue to cover it, then it may be dying.... get the point - we really need a picture and more info. __________________ Our imagination is stretched to the utmost, not, as in fiction, to imagine things which are not really there, but just to comprehend those things which are there. ~Richard Feynman

01/18/2008, 11:04 AM	#5
discocarp Registered Member Join Date: Jul 2003 Location: Winter Park, FL Posts: 2,707	Pics? What kind of plate?

01/18/2008, 11:27 AM	#7
discocarp Registered Member Join Date: Jul 2003 Location: Winter Park, FL Posts: 2,707	They can make comebacks even with visible skeleton. What I'd be looking for is trajectory. If its gone from healthy to showing skeleton, its going in the WRONG direction and something needs to be done. But, once they have gone downhill, they can make great comebacks if the conditions that caused the decline are fixed. I've got a fungia right now that's on its way back from near death. Almost half the skeleton was showing. Now that its in good, stable tank conditions again its starting to come back nicely.

01/18/2008, 11:32 AM	#8
discocarp Registered Member Join Date: Jul 2003 Location: Winter Park, FL Posts: 2,707	Oh also, one other correction from above. Fungias are fine on rocks. They're native to rubble zones. I still keep them low so they don't fall when they inflate themselves, but its the fall that's the problem not the rocks. I also rarely if ever feed mine and they still grow wonderfully.

01/18/2008, 11:35 AM	#9
jeeper xj Premium Member Join Date: Nov 2007 Location: yucaipa Posts: 228	mine has white line and its growing, but if it looks like its deteriorating, it is..