[jing]

Posted this on BCA but no replies yet.. hopefully someone on here can chime in.

A couple days ago, a red rash showed up on the side of my Ranchu's body and now it seems to have spread to other parts of his body. I'm not quite sure how to explain it so here are some pictures:




He's been eating normally and swimming relatively normal, except sometimes he will flick his body around in a weird way though he doesn't seem to be flashing as he's not trying to rub himself on anything.

On the right side of his body near the tail end where there's a bit of the red rash on it, there also appears to be something that looks similar to a blister as it's slightly swollen.

Anyone have idea what the cause of this might be and how to remedy it? I will be bringing a water sample with me to King Ed tomorrow and asking them to test it.