Ok let me first start off by saying, I am not getting a Moorish Idol I believe they should just be left in the ocean, I would just like to know for my own personal knowledge. I know they eat sponge and coraline alage but my question is "Are they safe with sps"? I'm just trying to figure out what exactly are they missing in their diet that makes them so hard to keep. Is it something in corals in nature they are eating and not in the home aquarium or what. Again, I'm not getting one, I would just like to know if they are safe with sps? Thanks.