Tigrinus looks sick

[headbanger_jib]

This fella i grew from hardly 3.5" size to nearly 13"
The tigs fins look reddish, but it's barbels and trailers on the caudal are perfect, no burns or shreds, but the caudal peduncle had small lesions.

Now the lesions have healed, but the redness hasn't gone, and the tig keeps swimming around the tank, still has control and doesn't swim mindlessly like my previous specimen.
The tig is in a 220gallon
Filtered at 4500ltr/hr sump that has a volume of 40 gallon
Weekly water changes

Tank mates are
1 12"+ NGT
1 13" IT
1 8" IT
2 3-4" AT
3 4" NTT
1 11" BD ray
1 11" motoro ray
1 7" Adonis
1 5" Niger

There was a 11" crenicichla lugubrius, which i have rehomed a week ago.
I thought the pike might be the one causing injury to the tig

 

[Fishman Dave]

When my tig started to behave a little different and show red in his fins it was not apparent straight away but it was harassment through the night. He had been out grown by (not so important) but our ranked in the tank by another catfish which in turn stressed him out. At which point any drop in water conditions etc. Just multiplied his voulnerability.
it may have been the pike cichlid, if it were the rays I think he would have lost his streamers. But sure sounds stressed by something, just trying to work out NGT, IT, AT and NTT ?

 

[headbanger_jib]

When my tig started to behave a little different and show red in his fins it was not apparent straight away but it was harassment through the night. He had been out grown by (not so important) but our ranked in the tank by another catfish which in turn stressed him out. At which point any drop in water conditions etc. Just multiplied his voulnerability.
it may have been the pike cichlid, if it were the rays I think he would have lost his streamers. But sure sounds stressed by something, just trying to work out NGT, IT, AT and NTT ?

Do you think some of the dats might be the issue

 

[Fishman Dave]

To be honest, it would surprise me if dats were the problem. Any I have had have never been outright aggressive or "confident" enough to take on a catfish of 13" , especially if at night. But, that said, I live and learn. Hopefully it was the pike cichlid.
Might think Adonis if the tig had a favourite hiding spot the plec also wanted, have heard Adonis can be a bit high tempered.
I assume you monitor water parameters and can rule out something amiss there.

 

[thebiggerthebetter]

Your prior tig broke its backbone, which was a freak accident I've never heard of before or after, so using that "illness" for reference is probably not warranted.

A picture of the lesions might have helped but not certain.

The redness in fins is a classic sign of stress but the cause of it could be hard to figure out. Out of the remaining tank mates, IDK anything about the adonis and the rays (except that people say rays chew the trailers, etc. as Dave hinted above). I doubt the dats.

If the tig feeds at least somewhat, I'd not worry too much yet but increase the observation. Granted you eliminate all other causes having to do with the water - pristine, aerated, and stable and within the recommended range for a tig.

I do recall someone experienced with dats told me once that one of their dats proved to be very aggressive to its tank mates. Again, I think this would be an exception.

 

[headbanger_jib]

Your prior tig broke its backbone, which was a freak accident I've never heard of before or after, so using that "illness" for reference is probably not warranted.

A picture of the lesions might have helped but not certain.

The redness in fins is a classic sign of stress but the cause of it could be hard to figure out. Out of the remaining tank mates, IDK anything about the adonis and the rays (except that people say rays chew the trailers, etc. as Dave hinted above). I doubt the dats.

If the tig feeds at least somewhat, I'd not worry too much yet but increase the observation. Granted you eliminate all other causes having to do with the water - pristine, aerated, and stable and within the recommended range for a tig.

I do recall someone experienced with dats told me once that one of their dats proved to be very aggressive to its tank mates. Again, I think this would be an exception.

The water never came to my mind, the rays in the same tank are in very good health, all the dats have crystal clear eyes, and the apple snails in the sump move around with fully extended antennae.

The trailers on the tail were in perfect condition, the barbels were in perfect condition, but now the tig has stopped eating and is quite close to death, after removing the pike, the lesions have completely healed, but the fish never settled, was constantly swimming and now has lost all balance and is rolling around near death

 

[kno4te]

The water never came to my mind, the rays in the same tank are in very good health, all the dats have crystal clear eyes, and the apple snails in the sump move around with fully extended antennae.

The trailers on the tail were in perfect condition, the barbels were in perfect condition, but now the tig has stopped eating and is quite close to death, after removing the pike, the lesions have completely healed, but the fish never settled, was constantly swimming and now has lost all balance and is rolling around near death

Terrible news. Sorry to hear.

 

[Matteus]

I am very new to dats, but I just recently had to move an angel out of my dat’s grow out tank because it was picking on the angel. The angel is almost double the size of the dat, and it had almost no pectoral fins left.

as I am reading this, I wonder if maybe the pike started something with the tig and put it in a vulnerable condition. Then after that the dats maybe sensed something up with the tig and continued to pick on it after the pike being moved? Thus continuing to stress it out.

Is there a way you could put the tig in an iso tank with nice water and good hiding?

 

[thebiggerthebetter]

Sorry to hear, bro. With the new info I doubt it was the tank mates, the pike or any other. Tigs are pretty hardy IME and can take a lot of bullying for a long, long time.

I have seen this symptom scenario great many times with my fish. I believe it's some kind of bug that eventually affects the central nervous system or the brain and it's lethal close to 100% in my experience anyway.

I have a list of fish that succumb to the same death in my tanks, some 100% like firewood catfish, some 90%, like juruense catfish, some 50%, like TSN and Pimelodus ornatus. All babies, no bigger than 5"-7".

Nevertheless, in general I find tig immune system to be quite strong, despite what is said here and there sometimes.

 

[headbanger_jib]

I am very new to dats, but I just recently had to move an angel out of my dat’s grow out tank because it was picking on the angel. The angel is almost double the size of the dat, and it had almost no pectoral fins left.

as I am reading this, I wonder if maybe the pike started something with the tig and put it in a vulnerable condition. Then after that the dats maybe sensed something up with the tig and continued to pick on it after the pike being moved? Thus continuing to stress it out.

Is there a way you could put the tig in an iso tank with nice water and good hiding?

Should've done that earlier, i just left him there to slowly wither away.