Streams and pools are great, but not essential to darts. As Maggie says, and I reiterate less gently, don't even consider mixing darts with other genera, different families of amphibians, or even their own different Dendrobatidae genera and species. They are worth enjoying on their own, for all of the reasons Maggie gave, and a hundred more why mixing them just won't work out well. Zoos may do it for a temporary public display, but we hobbyists don't have the same faculties as a zoo. Even mixing different species of darts with the same requirements is fraught with problems, some of them ethical considerations of possible interbreeding, creating hybrids we try to avoid and keep pure, but most of them pertaining to the fact that we simply cannot provide enough territory to mix them together. We are putting a few frogs from a rain forest measuring in miles and at the least, meters up and down of their territory, into a tank measuring in inches.
You might consider it on the human side. What if a lot of other people just moved into your house, and you had to share your personal territory with strangers?
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Patty
Pahsimeroi, Idaho
4 D. auratus blue
5 D. galactonotus pumpkin orange splash back
7 D. imitator
6 D. leucomelas
4 D. pumilio Bastimentos
4 D. fantasticus
6 P. terribilis mint and organe
4 D. reticulatus
4 D. castaneoticus
2 D. azureus
4 P vittatus
2 P. lugubris