>>1022329and pic is what I bought as Bolivian rainbow seeds. Though it might be a Chinese 5 colors, I can't tell for sure because the flowers are white, not purple.
Fruit first goes purple, white, then the classic yellow, orange and red. A lot of people say they don't taste good but the few I had were very good.
>>1022334These are clay pebbles. Though they are not growing in it, there is normal soil underside. It's just to "break" the water flow and avoid direct exposure of the (dark) soil to the sun. It also quite repels sciarid flies.