Copperband feeding regimen help

[ALWAYSFISHIN]

......Once upon a time I had a serious aptasia problem which I battled for some time, I came across a scat which completely irradicated every aptasia in my tank, and was loaned out to a few local reefers with great success on there tanks, however after adding a second vortech, and messing with the flow he was pinned against a rock when the vortechs were on constant flow...my fault, anyway his heath went downhill over the next few days and I lost him.

.......Well its been a few months and they are all over again....Im thinking the scat just kinda kept the aptasia knocked down, not completely removing them. A recent trip to pruess' left me with the option of peppermints/another ugly scat/or the fragile copperband which was eating mysis in the store and looked very healthy...I picked up the copperband and 6 peppermints.
........I added the fish and he is getting along with all of my fish, swims side by side with the blue hippo and yellow tangs...seems to be a model citizen
........Its been a week now, The copperband is eating aptasia constantly, he creeps up on them and completly takes em out, which is cool but here lies my question. Should I keep feeding my tank less so that he keeps the taste for the aptasia or should I go back to my normal feeding ways. the copperband will eat mysis and formula when i feed, I just dont know if a diet of mainly aptasia will suffice. Is it healthy to feast only on aptasia? Anyone with experience?