Ok, little update, it has been about a week since adding the mandarin, he is still going strong and getting fat! I saw a pod that had to be close to 1/2'' on the sand yesterday morning when the lights came on.
I fed them this morning and he ate as much or more brine shrimp than the clowns did. I have to cut the pumps for him to catch it tho, he really works hard to go so slow.