IMHO I think VHO's would be on the dimmer side for carpet, they love the MHs, I would definately pose this question or search in the Anemone section of Reefcentral. Also Carpets are known fish eaters.
You need to research a lot to make sure you purchase a healthy one to begin with, because especially carpets, are hard to care for. So its best to avoid ones with gaping mouths and get ones that are tight. [refering to info above] Definately do not keep them under PCs.
I can't give you a definate answer, I know a lot about nems, carpets are where I lack too much info. But the Anemone and Anemone fish section is filled with great info!
HTH
-Chris