Very cool, I like the Red Caquetia. Don't think I've seen them before.
Yeah, they are one of my favorites. I especially love the bluish pattern under the reddish body.
The are supposed to be very difficult to get off of live food therefore many people shy away from keeping them.
Personally, I have never noticed a problem and had them eating frozen food within 1-2 weeks after I imported them.
I once brought in a pair for a friend of mine and he had them for quite awhile without any success.
He is a very experienced fish keeper (with lots of ray experience) and asked if I wanted them back because he didn't want to keep feeding live black worms.
I had them eating frozen within a week.