I breed quite a few different species/morphs. Be sure to do lots of research. You always want to breed frogs that are from the same locale and import group, if possible. There are dozens of unique populations of most species that are isolated and cannot breed with one another in the wild, so these should not be mixed in captivity. Most dart frog species do best in pairs only, especially if breeding. There are many morphs of Dendrobates tinctorius, including the azureus morph (blue poison frog), and these are quite easy to keep and breed. Starting with a sexed pair can be pricey, costing from about $200-$400, depending on the morph and whether they are simply two sexed individuals or a proven pair. If you like blue frogs, you just can't go wrong with azureus. You can pick up froglets for as little as $25 each and raise them together until they are old enough to sex. After that, they have to be paired off. The females are extremely territorial and will fight, which often results in the submissive female hiding a lot and losing weight. If kept together longer, the submissive frog will often die.

Anyway, any of the tinctorius morphs are easy to find and breed and you don't have to leave them to rear the tadpoles, like other species. You can remove the eggs as soon as they are fertilized and raise them yourself. You can also leave the eggs and the parents will give them a piggy-back ride to the nearest pool of water when they hatch and leave them. At that point, of course, you'll either need to remove them or feed them in place if the water feature is large enough. However, most can be cannibalistic, so it's best to put each tadpole in its own small cup until it morphs out.

There are many written and video tutorials on breeding and raising dart frogs. Both Black Jungle and Josh's Frogs have videos that you can access through their websites or search for on YouTube. I'd watch both sets to get different ideas. Also, plan on at least a 20-gal for one pair of dart frogs. My breeding pairs are mostly in 29-gal vivs.

John Clare has more experience than I do and he has kept many different smaller species (referred to as thumbnails). His photos will make you want to get every type he has .

Good luck.