Sick Bangaii Cardinal

[Frigideus]

My tank has been up for a couple weeks now and today I noticed one of my bangaii cardinals not looking so good. I tested and my parameters look okay. I may try phosphate again just to be safe, and I have some countermeasures coming in the mail tomorrow. I have also turned the lights off on my tank for about an hour starting from posting this just to see if he just doesn't like the light. He has just been hiding in the top corner of the tank for the second half of the day, this morning he was looking fine and eating his mysis shrimp. He has 5 tankmates, also all cardinalfish, and all 5 of them are doing well (you can actually see some of them in the background). A few days ago I did post about an isopod hooking to one of my bangaii's eyes, but this is not the fish that happened to (the other bangaii is doing just fine).

It has also been really warm around here which causes my water to raise in temperature by up to a degree. I have measures working to lower the temperature but thankfully all my fish and invertebrates seem unbothered by the change. This is the only fish that is acting strange.

Is there anything I can do to help this fish?

 

[Tahoe61]

Please provide specific values for temperature and specific gravity.
How old is the tank?

TIA.

 

[W31Olds]

It's not a Tank Problem at all. I have one of these and they don't move around a lot and just pick a spot to hang out. You fish looks fine to me. Your problem is all the others in your Tank. One or more is Bullying this one. They do that. That's why I only have one in my large Tank.
@vetteguy53081
@Jay Hemdal

 

[vetteguy53081]

My tank has been up for a couple weeks now and today I noticed one of my bangaii cardinals not looking so good. I tested and my parameters look okay. I may try phosphate again just to be safe, and I have some countermeasures coming in the mail tomorrow. I have also turned the lights off on my tank for about an hour starting from posting this just to see if he just doesn't like the light. He has just been hiding in the top corner of the tank for the second half of the day, this morning he was looking fine and eating his mysis shrimp. He has 5 tankmates, also all cardinalfish, and all 5 of them are doing well (you can actually see some of them in the background). A few days ago I did post about an isopod hooking to one of my bangaii's eyes, but this is not the fish that happened to (the other bangaii is doing just fine).

It has also been really warm around here which causes my water to raise in temperature by up to a degree. I have measures working to lower the temperature but thankfully all my fish and invertebrates seem unbothered by the change. This is the only fish that is acting strange.

Is there anything I can do to help this fish?

These fish often imported have been a controversial topic as they are said to be overbred, and ship poorly when imported. These fish dont do well in groups and as with mine best by themselves.

 

[Frigideus]

My tank has been up for a couple weeks now and today I noticed one of my bangaii cardinals not looking so good. I tested and my parameters look okay. I may try phosphate again just to be safe, and I have some countermeasures coming in the mail tomorrow. I have also turned the lights off on my tank for about an hour starting from posting this just to see if he just doesn't like the light. He has just been hiding in the top corner of the tank for the second half of the day, this morning he was looking fine and eating his mysis shrimp. He has 5 tankmates, also all cardinalfish, and all 5 of them are doing well (you can actually see some of them in the background). A few days ago I did post about an isopod hooking to one of my bangaii's eyes, but this is not the fish that happened to (the other bangaii is doing just fine).

It has also been really warm around here which causes my water to raise in temperature by up to a degree. I have measures working to lower the temperature but thankfully all my fish and invertebrates seem unbothered by the change. This is the only fish that is acting strange.

Is there anything I can do to help this fish?

My LFS has been selling me these under the pretense that they’re ’schooling fish’. That’s why I ended up with them in pairs. I put him in my sump and I think he is happier down there. I’m going to keep an eye on him but now I’m not sure if the bullying target will change. The other bangaii was attacking this one, and the second pajama also nips at his pairing. The two glass cardinals are the only ones who like each other. Any advice how I should manage this bullying is appreciated!

 

[Reefara]

My tank has been up for a couple weeks now and today I noticed one of my bangaii cardinals not looking so good. I tested and my parameters look okay. I may try phosphate again just to be safe, and I have some countermeasures coming in the mail tomorrow. I have also turned the lights off on my tank for about an hour starting from posting this just to see if he just doesn't like the light. He has just been hiding in the top corner of the tank for the second half of the day, this morning he was looking fine and eating his mysis shrimp. He has 5 tankmates, also all cardinalfish, and all 5 of them are doing well (you can actually see some of them in the background). A few days ago I did post about an isopod hooking to one of my bangaii's eyes, but this is not the fish that happened to (the other bangaii is doing just fine).

It has also been really warm around here which causes my water to raise in temperature by up to a degree. I have measures working to lower the temperature but thankfully all my fish and invertebrates seem unbothered by the change. This is the only fish that is acting strange.

Is there anything I can do to help this fish?

These fish often imported have been a controversial topic as they are said to be overbred, and ship poorly when imported. These fish dont do well in groups and as with mine best by themselves.

Plus one on this one

Same as the royal gramma too has been in controversy of being handled poorly. Make sure as well to not buy directly the day a shipment comes into the lfs. Let them settle.

Have had some cardinals that were iffy just themselves.

 

[Reefara]

My tank has been up for a couple weeks now and today I noticed one of my bangaii cardinals not looking so good. I tested and my parameters look okay. I may try phosphate again just to be safe, and I have some countermeasures coming in the mail tomorrow. I have also turned the lights off on my tank for about an hour starting from posting this just to see if he just doesn't like the light. He has just been hiding in the top corner of the tank for the second half of the day, this morning he was looking fine and eating his mysis shrimp. He has 5 tankmates, also all cardinalfish, and all 5 of them are doing well (you can actually see some of them in the background). A few days ago I did post about an isopod hooking to one of my bangaii's eyes, but this is not the fish that happened to (the other bangaii is doing just fine).

It has also been really warm around here which causes my water to raise in temperature by up to a degree. I have measures working to lower the temperature but thankfully all my fish and invertebrates seem unbothered by the change. This is the only fish that is acting strange.

Is there anything I can do to help this fish?

My LFS has been selling me these under the pretense that they’re ’schooling fish’. That’s why I ended up with them in pairs. I put him in my sump and I think he is happier down there. I’m going to keep an eye on him but now I’m not sure if the bullying target will change. The other bangaii was attacking this one, and the second pajama also nips at his pairing. The two glass cardinals are the only ones who like each other. Any advice how I should manage this bullying is appreciated!

That lfs should close.
In the wild they are huge schooling fish.
But in captivity they pair off most of the time.