I just noticed a cluster of spots on my fish tail. They stand out and look a little fuzzy. I can't tell if it's ich since I read that ich resembles smaller/fine spots as if someone sprinkled dust on them. I'm wondering if this is a different fungus instead. Tips for treatment is appreciated. The tank is home to the two fish pictured plus one blue crayfish.
He did act a little aggressive back on the 12th by swimming fast and had a long white clear poop, but since then seems normal. No change in behavior or eating habits.
