Haplosplanchnids seem to be well concentrated in herbivorous fishes, so the family Acanthuridae was a good choice. I spent most of my efforts on surgeonfishes and unicornfishes. So my mornings were spent spearfishing for these guys, with my afternoons and evenings spent dissecting them.
I'll probably make a longer, and much more scientific post about Haplosplanchnids some day soon, but for now I'll just link to a video of me on Lizard Island talking about my purpose there.