Today I was showing off my two betta fish, Giorgio and Manolo. I held up a hand mirror to show a friend how they flare up when they fight. I did not hold up the mirror long. However, now Giorgio's gills still look a little too flared and a bit separated. Big G is older and bigger than Manolo and I wondered why his gills looked like that after holding up a mirror for a few seconds. Did I do something wrong?! Will he go back to looking like his normal happy self?