We just got a fish tank for the house and have started out with just two minnows for now. I’m nearsighted and usually wear my cheaters for close up viewing, but today I broke them and had to watch our new friends swim around in their new home without glasses. Well before long, I got a headache watching their little fins flitting around. My wife went to the medicine cabinet and grabbed me a pair of I see two minnow fins. I took them and now feel great again!