I was just wondering if it's okay to use a flash when taking photos of my fish?? I don't want to blind them, but without a flash the pictures come out blurry.
It all depends on the fish, silvery fish and those with reflective scales are better photographed without a flash using just the aquarium lighting in a darkened room, drab and dark coloured fish generally come out better when photographed with the flash on and the aquarium lights off.