I just noticed yesterday that my betta fish's face is getting blotchy in some places. He is a platinum white OHM male and has a very light pink color throughout his face and body. Today I noticed on his face that the pink color is getting stronger on his face, and looks blotchy in patches on his face. This color is also on one of his eyes.
Is this normal color change? Or is this some kind of problem that I should be worried about?
Right now he lives in my 5gal planted tank at 80 degrees F with a pH in 7.0 range. I feed him floating betta pellets (with "Color enhancing technology" - could this be causing the color variation?) and some dried bloodworms for a treat once a week.
I really liked his color before so I'd like to put a stop to the blotchiness, but first and foremost I'd like for him to be happy and healthy.