My Betta has recently developed a small, white spot on his eye. It almost looks like ich, but there has been no other spots showing up my other fish. It looks like a perfect dot of white right over the center of his right eye. Very small, very precise. No rough edges. Just a perfect little dot.
He's eating just fine. Swimming around as per usual. His neon tetra tankmates show no sign of specs, sluggishness, or etc. It's clearly bothering his sight as he only comes up to the glass with his good eye to leer at me.
Now, recently I've been having issues with kH and pH swings... I know this could stress him out and open him up to infection, and I've been working on stabilizing it.
My question is whether or not I should treat this assuming that it's ich, or let it develop to see what it really is? Or should I treat with ParaGuard as if it is just a scratch on his cornea?