Hello, I need some help. Woke up this morning to find my cory with nipped fins and red spots, it appeared to be perfectly fine last night. I believe this is perhaps red blotch disease and maybe fin rot? I have oth shrimp and fish in the tank but everyone else seems to be ok. Can anyone confirm this disease and offer a treatment plan? My last water change was Tuesday and I am concerned about the fish needing to be quarantined. Please, any help would be appreciated, really don't know what to do.