Hey, welcome!
Best advise is to always buy a book or two before getting the animal and then get the tank set up. There's a few good books out there on pixies and the best IMO is giant african bullfrogs: history and captive husbandry by philippe de vosjoli and robert mailloux because this focuses entirely on that species but others such as amphibians in captivity by marc staniszewski and frogs and toads by devin edmonds give general amphibian care and also feature small sections on these frogs.