From Nick, a UK Breeders` perspective
I purchased 2 pairs of Peters Twinspots in Feb 2014. All birds were UK bred. They were housed initially in inside flight cages until warmer weather arrived. They were fed mainly on mixed millets with a “softfood” mix a couple of times a week. This consisted of sprouting seed, eggfood, frozen pinkies and a protein powder. To be honest I don’t measure the individual components accurately and place more store on the mix being the right constituency crumbly and not too dry/wet.