I have 3 clown loaches, about 5" each, in a 120 gallon tank. They were recently added from a quarantine tank, and seemed totally healthy, albeit shy. However, they have black spots on them now, particularly on the head and "snout", but also scattered across the body. They aren't external, like ich cysts, but instead look like small patches of darker pigmentation, dark brown in color.
The fish seem healthy, but they have been hiding a lot and seem nervous when they're out of their caves. Any idea what causes this? I haven't seen them flashing or behaving as if they're irritated.
I'll take some pictures if I can.
The fish seem healthy, but they have been hiding a lot and seem nervous when they're out of their caves. Any idea what causes this? I haven't seen them flashing or behaving as if they're irritated.
I'll take some pictures if I can.
