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View Full Version : How do you know if a Coral is dead?



sweat044
11-15-2011, 08:53 PM
Ok so I have different corals in my tank and I think they are all at the right temp, flow and lighting. But some look like crap. How do I know if they are dead. For instance some of my zoas are closed up????? Please help!

Scuba_Steve
11-15-2011, 09:26 PM
Zoas will deteriorate. If they are closed, they are not happy but alive. Other corals will turn white, then all of the meaty tissue will come off leaving only the calcium skeleton. Note that just because you see this doesnt mean it is just unhappy and heavily retracted. In a day or two without recovery, it is dead though.

hooked
11-15-2011, 09:31 PM
I was told " don't toss it until algae grows on it". Have been glad I listened more than once.


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Aricml
11-16-2011, 12:15 AM
So what would the verdict be for this hitchhiker that is trying to pull out of cycling with my tank?

http://i1088.photobucket.com/albums/i328/aricml/InitialMushroom2.jpg

hooked
11-16-2011, 06:51 AM
looks like a mushroom of some type. How long has it been in the tank? It doesn't look like it is dying. Has it been without light for some time? Give it some time to adjust. If your tank parameters are different than from where they came, they will react. The number one rule of reefing is " Only bad things happen fast". Patience is key.

Murfman
11-16-2011, 07:02 AM
Sweat, Zoas that are closed up are pissssed off. I would move them to the bottom and less light to see if they open up. You can also dip them in an iodine solution (Search google) to help them along.

sweat044
11-19-2011, 08:08 PM
Here are some pics.
http://i1199.photobucket.com/albums/aa467/sweat044/New016.jpg
http://i1199.photobucket.com/albums/aa467/sweat044/New018.jpg

sweat044
12-08-2011, 12:43 PM
Here are some pics of the coral before and the coral now? What happened? Please someone help. Is this dead?

http://i1199.photobucket.com/albums/aa467/sweat044/Coral1.jpg
http://i1199.photobucket.com/albums/aa467/sweat044/Fish041.jpg

JLAURENCE32
12-08-2011, 01:27 PM
Corals are so crazy. Most usually need time to adjust to your new lighting and water parameters. Also when you let your tank get out of wack (dirty, params off), sometimes it takes a long time to get back to normal. Corals also like consistency in a mature tank. I've had some that I was gonna toss, then just left them and they come back like crazy strong. As Tom Petty said "the waiting is the hardest part!"

Murfman
12-08-2011, 01:29 PM
Here are some pics of the coral before and the coral now? What happened? Please someone help. Is this dead?

http://i1199.photobucket.com/albums/aa467/sweat044/Coral1.jpg
http://i1199.photobucket.com/albums/aa467/sweat044/Fish041.jpg

Can't see the coral in the last pic, too blurry. Looks like it does have red skeleton around the edge. I had a favia do that a couple of years ago, too. Never could pinpoint the cause.

sweat044
12-08-2011, 01:42 PM
Yeah. I have it as high as it can go under the T5 and it does have the red skeleton around the outside. Would you say it is dead or should I just leave it be and see what happens? Would it cause anything in my tank if it is dead?

Murfman
12-08-2011, 01:44 PM
Yeah. I have it as high as it can go under the T5 and it does have the red skeleton around the outside. Would you say it is dead or should I just leave it be and see what happens? Would it cause anything in my tank if it is dead?

IDK if it will hurt keeping it in the tank. Do you have any other favia's?

sweat044
12-08-2011, 01:46 PM
No this is the only one. I seem to be able to keep zoas and a lot of mushrooms. I am upgrading to a 6 bulb T-5 tonight. Should I lower the corals so they can adapt?

Murfman
12-08-2011, 01:50 PM
What is your current lighting?

sweat044
12-08-2011, 01:58 PM
What is your current lighting?

Dual T-5

Murfman
12-08-2011, 02:00 PM
You can move them down or use layers of screen to diffuse the light. Take a layer off each week till you are at full strength.

Scuba_Steve
12-08-2011, 02:13 PM
Or raise the light way up and slowly lower it over a few weeks.

sweat044
12-08-2011, 03:01 PM
Or raise the light way up and slowly lower it over a few weeks.

Can't light is going on the tank. No hangining here.