I need a herbivore for a 40 breeder...thinking about rotating small tangs

[keith sprague]

BTW fish wise, mine eats calurpa also.didnt eradicate it from my tank but does eat it.its funny when i pick it and the stems float around he'll chase it around and eat it.

 

[tcoral]

The only thing I found to keep down calurpa was a two bar rabbitfish, but they'll get large in a hurry too.