koalanoodle

Update: I was able to get some kanaplex delivered luckily. The size of whatever the patches are haven't changed for better or worse which leads me to believe it may be scratches, but I did a half dose of kanaplex for the whole tank just in case since I'm dealing with scaleless fish. The loach seems to be fine and is eating and active but I'm just going to make sure.

My striped kuhli loach recently showed up with white patches along it. My first thought was that it was fungus or columnaris since there was a death in the tank while someone was watching it when I was out of town (so lesson learned on that). So a fungus developing in the day or two that the tank wasn't watched seemed like it was the most likely answer. But the loach hasn't had any change in activity or anything. It still comes out in the morning and still does laps around the tank with the other loaches occasionally. None of the platies in the tank have changed behavior either and none of them show any signs of an infection and I would think that if a fish was going get sick from a dead fish it would be one of them, especially one of the smaller, younger ones. The white patches also look like they follow pretty evenly along the spine so now I'm thinking it could just be a scratch from swimming under something or even just stretchmarks. The one white mark on the bottom is what's making me worried that it could be something else. Is this something that I should quarantine and start treating or am I worrying over nothing? I have some paraguard and API general cure but if it's columnaris I'm not sure either of those would be effective, so is there something for treating that that people recommend, especially since kuhlis are a bit more sensitive to meds?