Marsi

Velvet or skin flukes? Flashing but still eating and not lethargic. I've looked all over the website about how to treat velvet. I also watched many videos but I'm not sure what med I should be using. I have Ich-x and the bottle states it is to treat velvet- but not sure if this is the recommended treatment. If yes- do I just use the same instructions it states on the bottle for treating Ich? I've blacked out the light to the tank but not sure what else I should be doing. Please advise!