ducan coral

[Southernstang98]

water parameters are normal with good water flow. I have two 150 Hamilton MH lights 14K above my 55gal tank. Every ducan coral I have put in my tank hasnt lasted three days, but my hammer, frogs, and torch are doing great along with everthing else. Any suggestions ? :hammer:

 

[wij]

When you say good water flow they dont like too much in my experience ive had mine 3 years from 10 heads now 100 or more and now fragging try a less turbulent area?

hope that helps?

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[farfromsea]

Agreed. They say "moderate" flow in some places online but for me in a 55 gallon cube with one powerhead churning water at 6000L/H I have to hide the coral from the flow. Suddenly when I did that it opened beautifully.

 

[Southernstang98]

Where I have placed them they have been in moderate water flow, they were close to the bottom. One did well for a week and then bam it was over and done with. Maybe just bad specimens?

 

[Southernstang98]

When you say good water flow they dont like too much in my experience ive had mine 3 years from 10 heads now 100 or more and now fragging try a less turbulent area?

hope that helps?

Sent from my SM-N920I using Tapatalk

Wish you lived closer by or I'd buy a few frags

 

[farfromsea]

Where I have placed them they have been in moderate water flow, they were close to the bottom. One did well for a week and then bam it was over and done with. Maybe just bad specimens?

Perhaps. Did they bleach out at all? They are primarily photosynthetic. I do feed mine some brine shrimp about twice a week and it seems to enjoy that. Did you get them from the same source every time? And you're sure it was dead not just retracting its small tentacles?

 

[Southernstang98]

Perhaps. Did they bleach out at all? They are primarily photosynthetic. I do feed mine some brine shrimp about twice a week and it seems to enjoy that. Did you get them from the same source every time? And you're sure it was dead not just retracting its small tentacles?

Nope, didn't bleach out they were fully open one day after I put them in there and then the next day all the flesh was gone and just the skeleton was there. I left it like that for a few days thinking it just retracted and still nothing. Mine even ate brine too. Two difference sources.

 

[farfromsea]

Nope, didn't bleach out they were fully open one day after I put them in there and then the next day all the flesh was gone and just the skeleton was there. I left it like that for a few days thinking it just retracted and still nothing. Mine even ate brine too. Two difference sources.

Interesting. Well since the calcium and alkalinity were normal do you think it is an issue of coral warfare? Did you place both specimens in the exact same place? Maybe the others do not like it there.

 

[nuttyd]

What fish do you have? Possible you have one that might have a particular taste for duncans.

 

[Southernstang98]

Interesting. Well since the calcium and alkalinity were normal do you think it is an issue of coral warfare? Did you place both specimens in the exact same place? Maybe the others do not like it there.

arent ducan corals in the same family at the torch, frogs, and hammer? I did place them in the same general spot, the next one I was going to place on the other side of the tank.

 

[Southernstang98]

What fish do you have? Possible you have one that might have a particular taste for duncans.

I had two filefish, which one I know was eating my zoas cuz i caught it one night so i since moved him into the ref for time being The other one will eat brine, mysid, and aptasia but has never messed with anything else. So, I bought another ducan and this one didnt last over night. Accum it the same way as the other corals and it didnt bother them.

 

[farfromsea]

arent ducan corals in the same family at the torch, frogs, and hammer? I did place them in the same general spot, the next one I was going to place on the other side of the tank.

Not by their taxonomy....

duncan coral:
Family: Dendrophylliidae
Genus: Duncanopsammia

whereas torches and hammers are
Family: Euphylliidae
Genus: Euphyllia

But maybe I'm wrong and they are somehow related enough to be immune?

But anyways I was always under the impression that hammers and torches can extend sweeper tentacles up to 6 inches at neighboring corals so it can make space for itself. I would imagine though that if your duncan was more than 6 inches away you can eliminate that cause entirely. However if it was within reach I would be surprised if sweeper tentacles killed a duncan so quickly. I would be more inclined to think your fish is nibbling on it in the night, but only if it looks like the flesh was damaged...

 

[Southernstang98]

Not by their taxonomy....

duncan coral:
Family: Dendrophylliidae
Genus: Duncanopsammia

whereas torches and hammers are
Family: Euphylliidae
Genus: Euphyllia

But maybe I'm wrong and they are somehow related enough to be immune?

But anyways I was always under the impression that hammers and torches can extend sweeper tentacles up to 6 inches at neighboring corals so it can make space for itself. I would imagine though that if your duncan was more than 6 inches away you can eliminate that cause entirely. However if it was within reach I would be surprised if sweeper tentacles killed a duncan so quickly. I would be more inclined to think your fish is nibbling on it in the night, but only if it looks like the flesh was damaged...

oh ok good to know but still they were far away from any of them to be touching. The hammers, frogs, and torch were actually above the ducans. Flesh didnt appeared to be damaged, the coral was open happy go lucky after an hr after I put them in there both times. One lasted a week, he other didnt last over night. Maybe it was coral warfare because they were all on the same time of the tank. Im going to try and put on the other side this time if I try again. Could a emerald crab pick at it at night ?

 

[farfromsea]

I don't know about the emerald crab. Just like with the fish I suppose you can't really blame them unless you see them chowing down. Too bad you can't set up a camera to watch the next duncan overnight lol

 

[Southernstang98]

I don't know about the emerald crab. Just like with the fish I suppose you can't really blame them unless you see them chowing down. Too bad you can't set up a camera to watch the next duncan overnight lol

I hate loosing stuff like this but I did a test last night. A friend of mine gave me a frag, I slowly accumulated to my tank by dripping. I put it in there in a area that gets low flow and it opened up 20 mins after I put it in there. Well I woke up to this...

 

[farfromsea]

Well. That looks messed up. When mine are retracted they never look caved in like that. Must be dead It is a small picture and I have somewhat terrible vision so it isn't the easiest for me to analyze.

But the torches and hammers are more than 6 inches away from it? Sweeper tentacles do come out at night.

Maybe next time put it in during the day on a day off so you can observe it with obsession?

 

[Southernstang98]

They are no where near it. The only thing I can come up with is the filefish may be picking at it at night thinking it's a aptasia. It and along with the peppermint shrimp rid my tank of them not to long ago.

 

[Southernstang98]

Well. That looks messed up. When mine are retracted they never look caved in like that. Must be dead It is a small picture and I have somewhat terrible vision so it isn't the easiest for me to analyze.

But the torches and hammers are more than 6 inches away from it? Sweeper tentacles do come out at night.

Maybe next time put it in during the day on a day off so you can observe it with obsession?

This help ?

 

[farfromsea]

Yeah seeing the skeleton is a bad sign. Something weird must be happening in your tank because I'm not really great at this and I haven't killed my duncan lol. Perhaps a predator like you're saying the filefish or the crab. I would put it in during the day next time and watch it all the time and then check on it periodically at night. You'll have to catch the culprit, livestock or sweeper tentacles, in the act! Quite an expensive experiment though

 

[Southernstang98]

Yeah seeing the skeleton is a bad sign. Something weird must be happening in your tank because I'm not really great at this and I haven't killed my duncan lol. Perhaps a predator like you're saying the filefish or the crab. I would put it in during the day next time and watch it all the time and then check on it periodically at night. You'll have to catch the culprit, livestock or sweeper tentacles, in the act! Quite an expensive experiment though

Yeah I know, lol but I do think it's the file fish because I've tried doing that during the day and same result. Guess I will just spend my money on another coral but they are really nice to have. Anyone ever had a file fish do this ?