I've had mine for 4 months now, that is not "success", but I feel I'm on the right track, they fish are happy, healthy and out and swimming all day.
I have lyretails and personally I'll never get them again, they are very peaceful with other fish in the tank, but very nasty to each other. But I really like that orangish-redish color they have.
I feed at least twice a day, sometimes 3 times. They seem to eat almost anything, even pellets which surprised me. I guess the main thing is get small food, or else chop it really fine, I've read many times they have small throats so can only eat small pieces. Frozen cyclops and frozen baby brine shrimp are safe bets they will eat, thats how I started mine and then eventually tried other foods.
Get them in odd numbers, 3 or 5, and only one male per group of females. I don't have a male, just 3 females.