Looks like a fungal infection.
hopefully you put it down first....Guess I'll be flushing the toilet soon. :headshake2:
Water params looking okay?
That does look pretty serious.
I noticed last night but it didn't look that bad...... My guess from digging around for food it made it real bad until I looked again tonight.Did you notice any deterioration lately? Doesn't seem like something that would just appear that quickly :huh:
Hopefully just an isolated incident.