Which stiphodon?

[shuwae]

I'm looking to buy some stiphodon but can't make up my mind from these three stiphodons:
- percnopterygionus
- atropurpureus
- semoni

I would like to get the percnopterygionus but have heard they are a little harder to feed. I would hate to get them and they end up starving. Tank mates will be sewellias and gastromyzons. Anyone with experience with either three and what you feed them?

[plaalye]

I haven't yet kept s. percnopterygionus but I doubt they're much different than the others. I also haven't yet seen s. atropurpureus. All of the stiphodon that I've seen sold as s. atropurpureus are s. semoni IMO. Great fish!