I've had really good results with a filefish in a 210 gallon tank. I used to have hundreds but the filefish cleared everything out

BRS just had a video yesterday they posted about their failures. One of the topic was aiptasia. They tired file fish, berhia, shrimp and had limited success. They said they could see them munching on aiptasia, but it took several months before they started eating it. Issue was that they have a lot of flow in the tank, so shrimp and berghia couldnt really swim or move around to eat them all. They ended up epoxying over all of the big ones and killed them that way. Small ones they are still dealing with months after and are letting file fish eat them slowly.

I think I'm going to combine different things. I'll try to kill the big ones with Aiptasia X and am getting a file fish tomorrow. I gave up on berghias because they would be too expensive for such a big tank and also would have too many predators. Wish me luck, it's gonna be a long battle!

I have one sitting in my storage in aldergrove 20$

I'll send you a pm