I use Nolvasan for the snakes myself, and I love the stuff. It is said to be safe to ingest if some residual Nolvasan is left behind in the water bowl for snakes (unlike bleach). I have heard of some keepers using Nolvasan topically on tree frogs to treat bacterial/viral infections. So if it is safe enough for them, the same should hold true for darts. When you dilute the stuff, I would think you'd have to be sure to use water that is safe for your frogs. Using tap water with this stuff won't hurt for snakes, but frogs are another story.
Bry
Bry
