Fittonia argyroneura "Nerve Plant"
Really fun and easy going houseplant! They are shorter terrestrial species that will grow as a ground cover. Perfect for terrariums!
They prefer bright indirect light and frequent watering around every 6ish days. When they use up their water they will completely fall over appearing "sad" but give it a water and it'll pop right back up within hours although its not recommended getting it to this point. It's truly magical.