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xenia problems

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Subject Author Date
xenia problems Kelsey Cummings 04-21-2005
Posted by Kelsey Cummings on April 21, 2005, 7:53 pm
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I've got a 3 month old 30g reef tank setup with 15g refugium and added
my first coral a couple of weeks ago- a pulsing xenia. It's seemed very
happy and perfectly healthy until a few days ago when a few of the
'fingertips' look like they have calcified - just the very tips turned
white and rigid. It doesn't seem to be getting any worse or spreading
to other areas. Is this a cause for concern? If it is a problem what
the most likely cause and what steps should I take to resolve it?

Sorry I don't have good water parameters handy - I had my LFS test the
water when I bought the Xenia and they thought it looked perfect.

As a newb, can someone recommend what I should be testing for on a
regular basis and what kits I should purchase?

-K

Posted by IceManDug on April 21, 2005, 10:25 pm
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I would recommend checking the pH. When the pH is low, the xenia will stop
their pulsing. You should also check the specific gravity, temperature, and
alkalinity.

--

Doug Branham
> I've got a 3 month old 30g reef tank setup with 15g refugium and added my
> first coral a couple of weeks ago- a pulsing xenia. It's seemed very
> happy and perfectly healthy until a few days ago when a few of the
> 'fingertips' look like they have calcified - just the very tips turned
> white and rigid. It doesn't seem to be getting any worse or spreading to
> other areas. Is this a cause for concern? If it is a problem what the
> most likely cause and what steps should I take to resolve it?
>
> Sorry I don't have good water parameters handy - I had my LFS test the
> water when I bought the Xenia and they thought it looked perfect.
>
> As a newb, can someone recommend what I should be testing for on a regular
> basis and what kits I should purchase?
>
> -K



Posted by Kelsey Cummings on April 21, 2005, 10:54 pm
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IceManDug wrote:
> I would recommend checking the pH. When the pH is low, the xenia will stop
> their pulsing. You should also check the specific gravity, temperature, and
> alkalinity.

Whatever is affecting them hasn't affected their activity. They are
pulsing like mad and contracting into a ball on a regular basis.

SG is 1.024
Temp is 78

I don't trust my pH/Alkalinity tests but they show

ph 8.0 - 8.4
Alkalinity somewhere between 150-300

They are lit with 65w 10k and 65w actinic PC lights.

-K

Posted by Pszemol on April 22, 2005, 10:05 am
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> I've got a 3 month old 30g reef tank setup with 15g refugium and added
> my first coral a couple of weeks ago- a pulsing xenia. It's seemed very
> happy and perfectly healthy until a few days ago when a few of the
> 'fingertips' look like they have calcified - just the very tips turned
> white and rigid. It doesn't seem to be getting any worse or spreading
> to other areas. Is this a cause for concern? If it is a problem what
> the most likely cause and what steps should I take to resolve it?

What else do you have in the tank ?
I have found my fish developed taste for a pompom Xenia
I got in my main setup and it was biting off tips one by one...
To determine the reason (before I actually see the fish doing
this and confirmed my previous findings) I moved some of
the Xenia bushes to my lighted refugium (same water system
with the main tank) and they fully recovered. I moved them back
to the main setup and they become white the next day...

Also, check if Xenia does not have any chance to touch any
other corals - when they sting each other the tips become white.
I had my fully expanded Xenia touch green button polyps and
become white like you have described.

Also, some sources claim Xenia is not "eating" in a regular
fashion - instead it ingests nutrients from the water column,
like water plants do. So smal amount of nitrates/phosphates
in the water is beneficial for corals like Xenia...
Maybe your water is lacking nutrients and Xenia is not feeling good?

Posted by Kelsey Cummings on April 22, 2005, 2:06 pm
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Pszemol wrote:
>
>> I've got a 3 month old 30g reef tank setup with 15g refugium and added
>> my first coral a couple of weeks ago- a pulsing xenia. It's seemed
>> very happy and perfectly healthy until a few days ago when a few of
>> the 'fingertips' look like they have calcified - just the very tips
>> turned white and rigid. It doesn't seem to be getting any worse or
>> spreading to other areas. Is this a cause for concern? If it is a
>> problem what the most likely cause and what steps should I take to
>> resolve it?
>
>
> What else do you have in the tank ?

1 Yellow tail damsel (if I'd known before I bought it...)
Snails, Hermit Crabs, Pepermint Shrimp, worms

The pepermint shrimp were introduced after the symptoms developed.

I haven't seen anything bothering the xenia and it's nowhere near any
other coral or polyps, etc.

-K

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