Lol. I had a Inimicus didactylus, or sea goblin. I kept him by himself in a 40 breeder tank and was just bonkers over this fish. Trained onto frozen, would come up when I was at the tank...just one of my fave fish I had. However,I had aptasia and they were taking over the tank. I used joes juice, lemon juice, kalk paste, whatever just never got them under control. Well with preds any type of shrimp is out, so no peppermints. Then I found a matte file fish. Hey, they eat appies!
Sure enough, he decimated those aptasia. Wiped them out in a couple months. Ate frozen food as well. But then once the appies were gone, nothing to pick at. So the little tassels that are on bottom dwellers looked appetizing. Literally almost picked him to death. I watched him grab a part and pick the Inimicus off the bottom of the tank.
Needless to say I quickly removed the file fish and relocated him somewhere else. I was able to save the Inimicus with mess and vitamin c dosing, but I learned my lesson on grazers real quick.
My 125 could stand a tang or two, something to pick at the rocks. But my preds are more important then a bit of algae to me. Especially when you can't find them very often.
That's my story.