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Old 04-30-2003, 03:46 PM   #11
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well, the koran is actually an adult - so that's not possible, since he's got his full colors. And as for the emperor, I've had others and have seen them go through their color changes - this is completely diff. trust me - I'm going to see if I can take a pic of it tonight and post it so you guys can see.
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Old 04-30-2003, 04:34 PM   #12
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Quote:
Sounds like both fish are changing from juvinile to adult to me.
This is certainly a possibility, but I wouldn't rule out nutrition or bacterial infection.

What are the water parameters of each tank, and specifics of filtration, lighting and maintenance of each tank. Exactly what it is you feed and how often.
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Old 04-30-2003, 04:42 PM   #13
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Here you go:

125G - Pre-Drilled (hardware):
-----------------------------------

(2) 40W actinic blue
(2) 40W 10k full spectrum
Mag Drive Model 18 used for dual return
Sea Life Systems Wet/Dry
Sea Life Systems Protein Skimmer
LifeGuard 40W UV Sterilizer
RIO Model 1700 pump used for UV Sterilizer
1/4HP Aqualogic Chiller
(3) Chemi-Pure carbon bags

Water:
--------

Ammonia - 0
Nitrites - 0
Nitrates - 0
Calcium - 420
pH - 8.23 - 8.30
Phosphates - .25 (on the high side)
Temperature - 70 to 80F
Specific Gravity - 1.022


72G - Pre-Drilled (hardware):
----------------------------------

(1) 40W actinic blue
(1) 40W 10k full spectrum
Mag Drive Model 5 used for dual return
Sea Life Systems Wet/Dry
Sea Life Systems Protein Skimmer
CoraLife 18W UV Sterilizer
RIO Model 1700 pump with ball valve to restrict water flow used for UV Sterilizer
1/4HP Custom Sea Life Power Cooler Chiller
(2) Chemi-Pure carbon bags

Water:
--------

Ammonia - 0
Nitrites - 0
Nitrates - 0
Calcium - 420
pH - 8.23 - 8.30
Phosphates - .25 (on the high side)
Temperature - 70 to 80F
Specific Gravity - 1.024

Feeding:

125G - Have changed to 3 to 4x per week, one day consisting of Spectrum A+ pellets, one day consisting of Formula 1 cubes and one day consists of Silver Sides/Pellets

72G - Same with the exception of the food: Spectrum A+ Pellets and Formula 1
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Old 04-30-2003, 05:57 PM   #14
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Two things really jump out at me,
One is the temp range. Does it fluctuate 10* over the course of a day? is it not constant from day to day? I would get a good heater, set it to 80-82, natural reef temps average 80-84.
Two is the diet, How much sponge is in Formula 1 cubes?? Even if it were the number one ingredient, which I don't think it is, it is not fed every feeding. In the wild, sponge makes up the majority (on the order of 85-95%) of a large angels diet in the wild. I am really thinking this is a combo of both, but I would like to see the pic of the fish.
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Old 05-01-2003, 09:32 AM   #15
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Sorry, the temperature is 79-80 - I will try adjusting to 80-81 and see what happens - I did have it at 85/86 at one time and lost a couple of angels to it - they did not like it that hot. This was before I got the chiller.

I will try and post some pics. Def. seems to be stress related, I say that because last night I had to transfer a fish from the other tank to it, since it was eating my anenomes and the one in question ended up with more spots - so it's got to be stress. And yest. I also saw him and my majestic going at it. So that's prob. what's stressing him......
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Old 05-01-2003, 03:09 PM   #16
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Here are (2) pics of the fish in question:

Note: There is nothing superficial on the actual skin.



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Old 05-02-2003, 09:07 AM   #17
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I quote Bob Fenner here:
Koran angels are more sensitive to poor water quality as marine aquarium species go. Excess organics often show as blotchy white-marked areas, and are directly positively correlated with ease of infectious and parasitic susceptibility

What kind of protein skimmer do you have? Also.. this seems to be a picture of a juvenile Koran Angel (Pomacanthus semicirculatus) do you have pics of the Emperor as well?
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Old 05-02-2003, 10:53 AM   #18
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Unfortunately the Emperor did not make it.

I have a SeaLife systems Model 200 which is for up to 200G - this on the 125G, which is where the Koran is......
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