Looks like velvet to me, most likely. I’d recommend copper power (1.75 PPM) and a Hanna copper checker to measure accurately but if you use ionic copper like cuprion you need copper levels of 0.5 PPM and a Hanna copper checker to monitor accurately as well.
I’d increase with 5-6 doses over 6-12 hours. This because velvet is no joke and fast-acting. The gradual increase is what’s important, not so much the timeline. Several doses is what makes or breaks it with wrasse, often.
If I may ask, what made you diagnose this as velvet over ich? I am trying to get better with my diseases and want to know what you looked for. It still isn't a large amount of dots, but they do look less bumpy like ich does and have the 'flat' look of velvet.
Smaller spots, the wrassse is a small fish so that’s used for scale, the subject is a wrasse which isn’t often impacted much by ich due to their thick slime coats, and the spots are pretty numerous and in somewhat uncharacteristic places to find ich in all but the most extreme cases.
It sounds dumb, but I never considered that the spots would stay the same size and you could use the fish as a scale. Thanks for the information, I really appreciate it.
This forum is great because I have noticed that 1) the ratio of experts on the forum is higher, lots of great minds on here and 2) most people won't comment if they do not know the answer to your question or direct you to someone who does know about your specific problem.
