Once most the clutch is gone & all nips are healed nicely then I usually put them out in a Scratch & Dent Sale. Don't worry, there are plenty of breeders out there waiting for those sales. They are looking for genes, not toes or tails. They also are bought up as pets. Some people are looking for an affordable pet & if it happens to have as much color as another but missing a couple toes and a smaller price tag, they are happy. lol
I have found a way to find the nippers. It works most the time.
It almost always is a male (not every time, but most) and is usually one of the largest (once again, not all the time).
But a good way to find them is to take a smaller dragon (usually one who has been nipped) and keep it out for a few min. then hold it by it's tail and dangle it over the bin. Move it back & fourth & you'll see the nipper targeting the little guy with is laser eyes.
Sometimes they will even leap at the target dragon. lol.
Give it a shot next time. I usually put the nipper in solitary confinement once found. It can also be more than one nipper so keep an eye out even if you think you found him.
Later
Oh,, this is Capt. Hook He was a target dragon from last year. I have vowed to keep him as my buddy. He is now one of our educational partners.

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Joel R
Coming some day.
www.SpikesAndScales.com