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Old 01-05-2012, 05:12 PM   #1
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Help with Hammer Coral

Hey gang. I have had a beautiful large hammer coral for about 3 months. It has been incredible until about 2 weeks ago. It started losing it's hammers, they would shrivel up green and then drop off. Now, the coral is about 60% alive, 30% skeleton and 10% shriveled up. My tests are all good. Trates, trites 0; ph 8.2, temp 77, flow is medium, salinity 1.023, calcium 440. Alk and phosphates are spot on. My question is what is going on? How do I help it out? When do I remove it? Will it hurt other coral? It is positioned by itself with no other corals near by... Thanks!!
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Old 01-05-2012, 07:16 PM   #2
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Have you recently changed your lighting? How is your temperature?

These are the only two things I can think of, but I hope everything goes well for your coral.
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Old 01-05-2012, 07:49 PM   #3
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Is there any build up on it or anything? Personally I see 77 as alittle cool, but 77 and 80 are pretty close.
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Old 01-05-2012, 11:59 PM   #4
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77 should be a fine temp. 1.023 is a little low IMO, but not nearly low enough to kill it. You didn't mention anything about your lighting. What do you have for a fixture. They need decent lighting and an inferior fixture could absolutely cause the problem.
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Old 01-06-2012, 01:08 AM   #5
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Thanks, gang. My lighting is metal halides, 250w. Lighting is not an issue, and there was no build up on the little guy... Sometimes things just die, I suppose...
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Old 01-06-2012, 01:37 AM   #6
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Quote:
Originally Posted by stevedpepper
Thanks, gang. My lighting is metal halides, 250w. Lighting is not an issue, and there was no build up on the little guy... Sometimes things just die, I suppose...
Yep. I just lost my frogspawn. My water and + light were fine. Oh the riddles
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Old 01-06-2012, 02:10 AM   #7
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What they are referring to by light, I think, is the change of your bulbs. Bulbs tend to change their spectrum as they age (IIRC), and a new set of bulbs could make a huge difference in a coral's health, although for a short time. When you say medium flow, what do you mean? Is the coral out in the open recieving direct flow, or is it shielded by rock? Another thing could be irritation from inverts/parasites.
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Old 01-06-2012, 11:03 AM   #8
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To much light can bother a hammer too. I usually move things around until they seem do good in a particular place sometimes just an inch or two can make a difference it seems. Is any fish bothering it like a clown fish? Do you have hermit crabs or peppermint shrimp?
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Old 01-06-2012, 04:57 PM   #9
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My bulbs are less than 6 months old. No crabs or shrimp in tank. Clown fish and other fish leave it alone. The hammers gently sway, and are not being forced aggressively by the flow.... Lol, he is a goner, while all other corals are doing brilliantly...
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