Stressed fish

dmh41532 · May 23, 2015

I have several fish that are slightly stresses, my yellow tang is the worse. The reason is because I had a trio of chromis that were terrorizing all of my fish and even some inverts. I finally caught them a few days ago but I am not sure if there is anything I can do to help the stressed fish recover. The chromis payed particular attention to the tang, biting its body and pectoral fins.

4FordFamily · May 23, 2015

dmh41532 said:
I have several fish that are slightly stresses, my yellow tang is the worse. The reason is because I had a trio of chromis that were terrorizing all of my fish and even some inverts. I finally caught them a few days ago but I am not sure if there is anything I can do to help the stressed fish recover. The chromis payed particular attention to the tang, biting its body and pectoral fins.

That's unique and rare behavior. I would bet that the chromis are not the culprits of stress...

I could be wrong.

Daniel@R2R · May 25, 2015

Bump for more help!

eatbreakfast · May 25, 2015

Can you post pics of the chromis?
There are many species of chromis and some behave a lot more like damsels.

Also what are you feeding and how often are you feeding. Dietary insufficiencies can cause tang fins to deteriorate. Not enough food can increase aggression.

Marty.h · May 25, 2015

I've had both blue and green chromis and my dad also keeps them they are not agressive at all in my opinion.

Sounds to me as above its a damsel of some sort you have and they are the gremlins of the marine world !!

4FordFamily · May 25, 2015

Marty.h said:
I've had both blue and green chromis and my dad also keeps them they are not agressive at all in my opinion.

Sounds to me as above its a damsel of some sort you have and they are the gremlins of the marine world !!

Blue and green chromis are the same fish..

eatbreakfast · May 25, 2015

3fordfamily said:
Blue and green chromis are the same fish..

Blue chromis are generally C. cyaneus from the Caribbean, green chromis are usually C. viridis, but there are 100 or so species with a wide range of behavior. Both C. cyaneus and C. viridis are pretty peaceful.

Marty.h · May 25, 2015

3fordfamily said:
Blue and green chromis are the same fish..

Green Chromis (Chromis viridis)

Blue-green Chromis", but that may also refer to Chromis caerulea, C. caerulea or Blue Puller

There are 2 different types

4FordFamily · May 25, 2015

Marty.h said:
Green Chromis (Chromis viridis)

Blue-green Chromis", but that may also refer to Chromis caerulea, C. caerulea or Blue Puller

There are 2 different types

I've seen them sold interchangeably. Are you sure it isn't a case of multiple scientific names? Like the halichoeres xanti and halichoeres melasmapomus?

If not, I learned something today!

Edit, you folks are correct.

I thought they were all just regional variants of the same fish

Marty.h · May 25, 2015

Not that I'm aware of they are 2 different types the blue-green being most common and the green being the ones not often in stock in LFS round here in UK unless I'm wrong if so I'm happy to be put right

Marty.h · May 25, 2015

3fordfamily said:
I've seen them sold interchangeably. Are you sure it isn't a case of multiple scientific names? Like the halichoeres xanti and halichoeres melasmapomus?

If not, I learned something today!

Edit, you folks are correct.

I thought they were all just regional variants of the same fish

Just shows in this hobby we are always learning that's what keeps it interesting in my opinion

4FordFamily · May 25, 2015

Marty.h said:
Just shows in this hobby we are always learning that's what keeps it interesting in my opinion

Very true I agree.

eatbreakfast · May 25, 2015

According to fishbase.org C. caerulea is an invalid junior synonym of C. viridis, though encyclopedia of life says it is valid.

4FordFamily · May 25, 2015

Well now that just adds confusion!

Any difference in chromis appearance (greenish or bluish) I've always attributed to aquarium lights rather than differing species. Who knows

dmh41532 · Jun 2, 2015

Unfortunately I don't have pictures of the fish, I removed them from my system. They were C. Viridis, from what I could tell, just became extremely aggressive.

Kworker · Jun 2, 2015

While nothing is impossible. I simply can't believe that C. Viridis will attack fish, especially a yellow tang. I am interested in seeing a video of this. I think there is misidentification of the species.