Yes same here,only the silver is said to be found in brackish waters.Hardly anyone keeps them in brackish but then we don't see a heck of a lot of ten inch silvers either way.They are still probably the least popular of all the dats so it is not really known if they need to be kept in some amount of salt as adults.The silver dat as far as i know have been found in mostly brackish water. A few in freshwater. Not sure if they are captive bred now and if that makes a difference.
The spot could be lymph but does look like skin lesions on eels and sliver cars when kept in pure freshwater.
Hope it gets better!
Only thing that comes to mind is what funwow mentioned is maybe a tank with some salt in it. Not completely brackish. Adding a small amount every couple of weeks. Maybe a small amount of salt can keep the fish’s skin clean. Just a thought that way don’t have to get rid of the silver dat.Thank you all, especially Kno4te and Krich.
I think your info that silver dats are brackish water fish explains what I am seeing. I clearly cannot get rid of it and none of my other fish have it (some tank mates and system mates had something superficially similar, which might or might not have been the same, but it cleared on its own on them long before the dat joined them).
It looks like I can't give this fish what it needs - a brackish tank. I need to find it a new home but very, very few people keep such tanks.
For now, I will aim to get some good photos of what I am seeing, so, with your tremendous help, I can grow surer of the diagnosis.
This is my first and only dat, so I don't really know what I am doing. My luck, I had to get the only one that's brackish.
Thanks, bro. As I said, I ain't got a separate tank at the moment. If I go salt route, I'll have to do two 240 gal tanks full of f/w fish, which I can't risk. Hence, if diagnosis is confirmed, I will need to rehome, most sensibly and likely.Only thing that comes to mind is what funwow mentioned is maybe a tank with some salt in it. Not completely brackish. Adding a small amount every couple of weeks. Maybe a small amount of salt can keep the fish’s skin clean. Just a thought that way don’t have to get rid of the silver dat.