Anything for a caulerpa eating critter

[marshall.read]

+1 for foxface, when caulerpa from my fuge makes it way into my display tank my foxface always eats it before it hits the ground.

regarding removing the tang/foxface when the caulerpa has been removed: may be a better idea not to remove the fish after the caulerpa is gone, i've never had much luck in completely removing caulerpa from a system, somehow it always comes back. you're better off just finding something to eat caulerpa and leave it in the tank indefinitely. you may always have caulerpa, but at least it won't be a problem.

[Richard]

You might give Marine Algaefix a try. I've read on some forums that some people have used it to eradicate caulerpa with success.

I've never used it but a friend of mine who does service has been using it on his service tanks (fowlr & reefs) for awhile now with no harm to any fish/invertes/corals. He says it works great on all green algae (hair, bryopsis, etc.) as well as diatoms. The only negative that he has seen is a small cyano bloom from the released nutrients when the green algae dies off. Like I said, I haven't personally used it (no sw tanks at the moment) but he sold me my first coral in the early 80's so I trust his opinion/experience.

[MeteorFlower]

I've heard that caulerpa sends runners/root into the rock, making it very difficult to completely remove. On that note, my Naso tang loves the stuff, so I've never had a problem with it getting a foothold in my display. And when I had to remove a coral beauty from the 156 gallon display, I just started feeding the whole tank mysis cubes out of a large net. After one week of training them to eat in the net, I not only caught the angel, but the naso as well!