HELP - 2 Spot Bristletooth Tang Stopped Eatin

[HD_Reefer]

So the tang went through quarantine perfectly, was added to the DT about 2 weeks ago and has been doing perfectly until 2 days ago. Out of nowhere, she just stopped eating. Before, she was constantly grazing and feed normally during feeding twice a day. There's no spots, markings or any signs of stress. Fins are relaxed and she swims around the tank just as she has done the entire time. There is no aggression from or to her that I can tell. She's not breathing heavy, but does seems to open her mouth wide from time to time. There are no visual issues with her mouth. I'm stumped....any ideas? I've tried mysis, Rod's, pellets, flakes and Nori, but she's not interested in any of it. The other tank mates are all perfectly happy (2 Clarkii Clowns and 8 Blue/Green Chromis).

Params:
Salinity - 1.025sg
Temp - 26.0C
Ammonia - 0
Nitrates - 2.5
Phospates - 0.25

 

[HD_Reefer]

Not an emergency, but hoping for some help before it gets that way....

 

[HD_Reefer]

BUMP

 

[Fred2482]

Is there algae growing in the tank?
How are you feeding the Nori ?

 

[Fred2482]

Also, what was the QT process?

 

[monkeyCmonkeyDo]

Roe by nutri something. Its in a bottle. Fridge food.
Or go to the asian market for fresh fish eggs.
Can you turn your lights down a little? Give some time.
D

 

[HD_Reefer]

Is there algae growing in the tank?
How are you feeding the Nori ?

There is. Up until a couple of days ago, she was keeping it totally clean. She was cleaning the nori off a rock & rubberband, but not interested in that anymore, so I tried a suction clip close to her hideout and she doesn't care about that either.

QT was just observation, no chemicals or treatments. She was a perfect eater from the get go, but had a missing chunk of fin when I got her from the LFS.

Even today, after not eating for a few days, she is visually perfect. I can tell she's starting to thin down a little, but just barely enough to notice.

 

[Fred2482]

Does the Tang appear to nip at the glass and/or live rock? Some Bristletooths get a lot of their diet from not so obvious supplies

 

[HD_Reefer]

Roe by nutri something. Its in a bottle. Fridge food.
Or go to the asian market for fresh fish eggs.
Can you turn your lights down a little? Give some time.
D

Is this what you're referring to?

ROE - Real Oceanic Fish Eggs (6 oz) - Reef Nutrition

Shop The Best Saltwater Aquarium Equipment & Supplies at Saltwater Aquarium. We Carry Everything you will Need for your Fish Tank.

www.saltwateraquarium.com

I'll have to see if my LFS carries it or something similar.

Lights are only half way through a 90 day acclimation, so there at 20% peak during the day. Can't imagine that would suddenly affect her, but I will give it a try in the morning.

 

[HD_Reefer]

Does the Tang appear to nip at the glass and/or live rock? Some Bristletooths get a lot of their diet from not so obvious supplies

She did, but has totally stopped. She was a super active grazer...the glass, the return nozzles, rocks, snail shells, etc...

 

[Fred2482]

You can try food like blackworms to try and get it to eat. Seems suspicious it was eating in QT and for around 10 days in the DT and then just stopped. I would definitely watch closely for any changes.

 

[HD_Reefer]

The only visual change to her is that she seems to be keeping her mouth open and then occassionally opening it wide, but never totally closes it. I've been trying to get a pic of her mouth, but I'm pretty sure she knows what I'm up to and completely avoids the camera!

 

[Fred2482]

I'm assuming there is plenty of flow and oxygen in the tank as the other fish are fine.

 

[HD_Reefer]

I'm assuming there is plenty of flow and oxygen in the tank as the other fish are fine.

Yes and yes. The others are thriving. All the param’s are super steady....I’m baffled.

 

[Fred2482]

No sores or discoloration around the mouth? Poop is normal? I'm reading around seems a few things to consider:

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[HD_Reefer]

Going into day 5 of not visibly eating. She seems to be hiding more than normal, but is swimming around just fine. She also seems to have stopped losing weight, so I’m curious if she’s only eating at night! I’ve watched her closely for days now and she has not grazed or went after food at all. Still waiting this out and hoping she’s just being fussy. There are no visual signs of issue that I can see

 

[HD_Reefer]

Day 7 of not eating. Please watch the video and let me know if you see anything that I’m missing. She looks completely normal, but is definitely hiding more and not swimming around as much as before.

 

[HD_Reefer]

Turned the lights off this morning and now she’s grazing and just ate pellets, so she’s obviously sensitive to the lights. They were still in acclimation mode before and about 27%...so it was definitely not over powering. She has no signs of ICK, Velvet, HLLE or flukes. Any ideas???

 

[HD_Reefer]

Plus, she didn’t lose any weight after 8 days of not visibly eating, so I’m guessing she was grazing after the lights went out this whole time.