OK guys I have been keeping SA/CA Cichids for almost 20 years now and have had the occasional run in with HITH (usually due to being young and not keeping up with maintenance). I have always been able to easily cure the problem, but now I am stumped.
I have a 150 with 6 small-mid sized silver dollars, a small immature Dovii, and a midsized Salvini. Filtration is a XP3 and two Bio-Wheel 350s. I do 35%-60% water changes usually twice a week and every week at the very least. I feed mixed pellets of hickari excelle, Omega one, and NLS, along with frozen treats of shrimp, smelt, and salmon.
PH-7.0
Ammonia-0ppm
Nitrite-0ppm
Nitrate-40ppm
Yet the Salvini's HITH seems uncureable and getting worse. Any secret tips will be greatly appreciated.

I have a 150 with 6 small-mid sized silver dollars, a small immature Dovii, and a midsized Salvini. Filtration is a XP3 and two Bio-Wheel 350s. I do 35%-60% water changes usually twice a week and every week at the very least. I feed mixed pellets of hickari excelle, Omega one, and NLS, along with frozen treats of shrimp, smelt, and salmon.
PH-7.0
Ammonia-0ppm
Nitrite-0ppm
Nitrate-40ppm
Yet the Salvini's HITH seems uncureable and getting worse. Any secret tips will be greatly appreciated.
