I need a little help. I've had my fancy goldfish for a few years now. And it seems like they are all slowly getting sick. I've lost 2 this year. It seemed to start after I gave some blood worms to them 2 years ago. One ranchu and one pearlscale started slightly tilting to the side and slightly bending their body. I did some research and figured it was swim bladder issues because nothing seemed was wrong. I did some deworming treatments with prazipro just in case.
Since the too slowly became less active and still tilted and bent their bodies over the months. I try salt water, different deworming regimes, and general cure treatment over the month and still no change.
Over this past year they started a losing more boyncy and would eat one or two pellets and become uninterested in food. All while still bending there tilting and bending.
I decided about 3 months ago to deworm more aggressively with minimal improvements despite multiple treatments. One did not survive long after treatments and I euthanized the other yesterday.
I'm worried because my other goldfish are showing the same symptoms. Tilting and bending, and interested in only a few bites of food. They are still able to swim normally luckily.
Water parameters
Ammonia 0
Ph 8.4
Gh very hard 300ppm
Kh 180 ppm
Nitrite 0
Nitrate 0
Temp 72
125g tank, 3 adult anchu, 2 adult pearlscales, 2 baby Mutt goldfish (2inches). The mutt goldfish seem to the only ones unbothered by anything.
I recently delt with Ammonia, nitrites, and nitrates spikes but got it under control. Could this be residual affects of that?