Haven't kept jacksonii yet but I have heard they prefer hibiscus blossoms over any other plants.
You can keep your tiny guy in a 5g critter keeper, then move up to a 20g once he's juvie, then a tall enclosure 3sides solid, front+top screen. Since he's small, gives you time to construct your own. Make sure you figure out a drainage solution as jacksonii like to be sprayed a lot.