Well it's been an interesting couple of weeks with the new filefish pair. They are both eating spirulina/brine and smaller marine plankton from the water column which is great, but we ended up having to move most of our acan lords to the frag tank on the big system because they were both picking at them incessantly. Thankfully, the acans were not damaged and the polyps began to open up shortly after the move.
Most surprising to us is they are not picking at the SPS colonies much at all. In trying to appeal to their natural grazing instinct, we tried smearing gel food into a dead acro skeleton several times, but neither fish showed any interest (perhaps the acans just taste better, LOL!).
So today, I decided to try a small piece of Larry's Reef Frenzy on a veggie clip to see how they would respond. It took about an hour, but the female finally decided to give it a try with the male following behind her soon after. They've been taking turns at the clip and ignoring the 2 remaining acan lords ever since.