Not about reptiles, but in my opinion, PDFs (poison dart frogs) and mantellas are rather easy to keep/take care of if you have a good source of fruit flies. I've kept golden mantellas, tincs, and E. anthonyi, and the biggest challenge was feeding them (which wasn't as big of a challenge as one freshly-made culture would last up to a month given that I tossed in some extra food and excelsior every now and then); I see so many people claiming that PDFs are difficult to keep, but other than dusting and culturing fruit flies every now and then, misting daily, managing plant growth, draining the false bottom as needed (probably every 3 or so months), and a couple other menial tasks (plus the initial setup), they're not that difficult to keep; honestly, I've had more problems keeping licorice gouramis and tiny nano fish than PDFs. They're really underrated pets IMO.