Montipora dying, while polypes are fully opened

Ragnarokas · 03/17/2021, 10:52 AM

Hello,

My red beautiful montipora is dying from below, yet the polyps are fully open. All other corals are ok, the water parameters are typical stable, no any recent changes. No pests observed.. Any ideas?

https://ibb.co/6HB9pJt

Member No. 1 · 03/17/2021, 01:49 PM

Possible shading from above.

4nReefer · 03/17/2021, 01:49 PM

From the picture it looks like it's shaded below by the new growth above. If that's the case, then this is normal. Corals grow new polyps above and overtime will shade the polyps below, causing a die off in the shaded area. But the top lives on and keeps generating new polyps. That's how it is in the ocean also. Hope this helps.

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03/17/2021, 10:52 AM	#1
Ragnarokas Registered Member Join Date: Oct 2009 Posts: 25	Montipora dying, while polypes are fully opened Hello, My red beautiful montipora is dying from below, yet the polyps are fully open. All other corals are ok, the water parameters are typical stable, no any recent changes. No pests observed.. Any ideas? https://ibb.co/6HB9pJt

03/17/2021, 01:49 PM	#2
Member No. 1 Ver. 2.1 Join Date: Mar 2005 Location: Rehoboth, MA Posts: 1,803	Possible shading from above. __________________ Pete "I never make mistakes... I thought I did once, but I was wrong" Current Tank Info: In the process - http://reefcentral.com/forums/showthread.php?t=2661614

03/17/2021, 01:49 PM	#3
4nReefer Registered Member Join Date: Sep 2018 Posts: 69	From the picture it looks like it's shaded below by the new growth above. If that's the case, then this is normal. Corals grow new polyps above and overtime will shade the polyps below, causing a die off in the shaded area. But the top lives on and keeps generating new polyps. That's how it is in the ocean also. Hope this helps. Sent from my SM-G975U using Tapatalk