Can one corals death cause a chain reaction?

[Aquattro]

Originally Posted by ScubaSteve

Simple answer: Yes. It's like sitting next to a sick person on a bus; you'll probably get sick too. Necrosis can be caused by a number things but in many cases it is "contagious" in that it can trigger other colonies.

In this case it sounds like unrelated species, so no, it would be like sitting beside a sick dog. You wouldn't likely catch what the dog has.

[Borderjumper]

Are they getting stung from the mushrooms?

[windcoast reefs]

Originally Posted by Borderjumper

Are they getting stung from the mushrooms?

That sounds like a more likely culprit. I've had mushrooms take out multiple colonies in hours.

[KPG007]

Originally Posted by windcoast reefs

That sounds like a more likely culprit. I've had mushrooms take out multiple colonies in hours.

I've had mushrooms sting colonies, they die where they were stung, but I've never had a colony die because of that. Can that happen?

[asylumdown]

I dunno, this looks too much like a proximity thing from the images, the dead coral in the middle, and the bleaching spreading out from a central point centred on the dead coral. Is it possible that this was the end result of a very aggressive case of allelopathic warfare?

[hfp75]

yes.....

[Son Of Skyline]

Originally Posted by KPG007

I've had mushrooms sting colonies, they die where they were stung, but I've never had a colony die because of that. Can that happen?

Some of my sps colonies are bordered by mushrooms and/or ricordia and none of the sps are stressed either. The surface of the coral dies where the shrooms meets, but then the sps will start to grow around and over the shrooms. It creates a nice natural border. My vote is for another stressor!

[daniella3d]

oh but the h1n1 virus come from a pig and transfered to a human. This is one of the most dangerous situation when a virus goes from an animal, chicken or pig, to a human.

If it is brown jelly and if it is caused by a vibrio bacteria, it could spread to other corals around it. I have seen it go from a duncan to a sps and I managed to save the duncan with a peroxyd dip then but lost the sps.

Recently I used furan 2 to cure RTN on a sps and it worked well. I would suggest next time you get such affected coral, just try a 3 minutes dip with furan 2 in a little container with tank water.

A lot of parasites are specie specific but it seem bacterias are not.

Originally Posted by Aquattro

In this case it sounds like unrelated species, so no, it would be like sitting beside a sick dog. You wouldn't likely catch what the dog has.

[asylumdown]

Originally Posted by daniella3d

If it is brown jelly and if it is caused by a vibrio bacteria, it could spread to other corals around it. I have seen it go from a duncan to a sps and I managed to save the duncan with a peroxyd dip then but lost the sps.

Virbrio. Nasty nasty nasty stuff. Nearly put me off raw oysters for good, and certainly ruined an entire trip to New York.