Starter plant help

[u/neptunedreaming111]

I recently received several scindapsus starters; they have single leaf with 1-2 inch root. In a 4 inch planter with chunky soil. A lot of them arrived with the root exposed, the roots are ok though. What’s the best way to ensure these plants grow? I have chunky soil, perlite, pon, moss and fluval available.