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Old 04/15/2019, 04:51 AM   #1
Tanthaitrung
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Sohal no eating

Dear all,

My sohal was in tank (217 gallon) from August 2017. He is now ablout 12 inches.

From March 31st I dose RedSea NO3-PO4:X 30ml daily to control NO3. From 13th Saturday my Sohal was not eating, his skin does not show any strange thing, all the others tang are eating well and the parameters are good.

Could you please help me?

Thanks so much



Last edited by Tanthaitrung; 04/15/2019 at 05:18 AM.
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Old 04/15/2019, 06:45 PM   #2
HumbleFish
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Any new fish added recently? Or a new coral or invert?


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Old 04/15/2019, 06:58 PM   #3
Tanthaitrung
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Thanks Humblefish
Yes, some peppermint shrimps and a copperbanded was add few days ago to treated aiptasia
I dipped the copperbanded 5’ with RO and 1 hour with Seachem Paraguard before adding tank



Last edited by Tanthaitrung; 04/15/2019 at 07:15 PM.
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Old 04/16/2019, 10:02 AM   #4
Uncle99
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Carbon dosing lowers available oxygen in the column and this is a big fish.
Make sure you have, or continue to provide good flow and break the surface.
Watch behaviour very carefully And be ready to treat all quickly in QT, if
A parasite is suspected
What is the level of nitrate your trying to lower?



Last edited by Uncle99; 04/16/2019 at 10:10 AM.
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Old 04/16/2019, 10:06 AM   #5
HumbleFish
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Quote:
Originally Posted by Tanthaitrung View Post
Thanks Humblefish
Yes, some peppermint shrimps and a copperbanded was add few days ago to treated aiptasia
I dipped the copperbanded 5’ with RO and 1 hour with Seachem Paraguard before adding tank
It's possible for some parasites (and other pathogens) to survive a 5 min FW dip + Paraguard bath.

I'm not saying these new additions are for sure the cause, but if this is the only recent change I would be watching your fish population closely. In addition to white sprinkles and other visible physical symptoms of parasites, it is important to observe for these key behavioral symptoms as well:

1. Reduced or complete loss of appetite.

2. Heavy breathing, scratching, flashing, head twitching, erratic swimming behavior

3. Swimming into the flow of a water pump/wavemaker/powerhead (unique to Marine Velvet Disease).

4. Acting reclusive (velvet causes fish to be sensitive to light).


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Old 04/16/2019, 05:55 PM   #6
Tanthaitrung
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Quote:
Originally Posted by Uncle99 View Post
Carbon dosing lowers available oxygen in the column and this is a big fish.
Make sure you have, or continue to provide good flow and break the surface.
Watch behaviour very carefully And be ready to treat all quickly in QT, if
A parasite is suspected
What is the level of nitrate your trying to lower?
Thanks for your response
The nitrate is now ~10, my target is 2.5 - 5


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Old 04/16/2019, 05:57 PM   #7
Tanthaitrung
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Thanks so much Humblefish
I will follow your advice


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Old Yesterday, 06:10 PM   #8
Tanthaitrung
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Dear HumbleFish,

I watched him carefully and he has the behavioral symptoms as you said.

I just picked him out, and dipped him in 3 liters of new saltwater with 15 drops of Formalin MS for 50 minutes.

He is now in a 3 gallon new saltwater plastic container with an air pump and 6 drops of Formalin MS.

I’m planning to leave him there until the day after tomorrow, then discarding the water, changing another plastic container and the air stones, doing one more dip and leaving two days with 3 gallons of new saltwater + 6 drops of Formalin MS then bringing him to the quarantine tank.

What do you think about my plan?

The instruction of Formalin MS said: “Use 2 drops per gallon of aquarium water every other day ...” That means every 2 days?

Does the Formalin MS has expiry?

Thanks


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Old Yesterday, 09:15 PM   #9
HumbleFish
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37% formaldehyde (active ingredient found in Formalin-MS) has ~ 2 year shelf life.

With regards to your plan, did you notice the fish swimming into the flow of a powerhead?

If so, that is a strong indicator of Marine Velvet Disease: https://humble.fish/velvet/


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