I saw the picture! It's very cute! And you being a cat man, I'm sure he'll be in great hands! Got a name yet?You check them often enough that if they start to bleach it wouldn't be very much. I'd say lower them just to see. But then again, it can't hurt to leave them up high.
On a different note, I just got a kitten. Like an hour ago some lady we passed walking down the street with a kitten saw where we drove home to, she walked over to our fence, tossed the kitty in our yard and took off. Was not really ready for this, but too late. :/