umm one of my fish had that disease where the tail turns white and they lose control of it. I've seen it before in my friend's tank but that was a long time ago. What should I do, i already euthanized the fish.. should i do waterchanges? i don't understand how this could have happened, I always do weekly water changes, heck i did one yesterday. :<
I really don't want this spreading since ive got my CPD in there too. so, help?
i would google, but i don't know exactly what to look up.