I just my Frisbee (Discus) to slime disease. I went on vacation guess my “aquarium caretaker” over fed my tank or something I have no pic cause I was so surprised to see him gone( and it was graphic)
I typically have a family member check on and feed my tanks every 3 days. If I didn't have anyone I could trust, I'd leave my tanks unfed for a week or so. This is with all mature fish in setups that have been running for years.