So my black lace delta tail (which by the way he finally blossomed into a halfmoon) has fin rot...AGAIN.
He never has a problem with his fins when he's in a spawning tank (I like to use spawning tanks for taking pics too, that's why he's in them so much). But as soon as I put him back in his jar he has frayed fins. So placed him in a 20 gallon tub half filled and treating with Ampicillin and salt baths. But EVERY TIME I put him in his jar he gets fin rot. I change the water every four days and if he gets a bad case of fin rot every day. I think it's the jar. What do you think?
Btw his jar is 1/2 gallon.