if i read this right, you want to keep frogs in a 10 gallon tank that you also want to breed fish in? i hate to give you bad news, but a 10g is barely large enough to breed anything more than guppies comfortably, let alone keep frogs in it. as far as species go, darts are a terrestrial species and need land mass, not water. fbt's need minimum 50/50 land:water ratio, and i am not sure about the toads, but my experience tells me that they are also a terrestrial species. do yourself a huge favor and research the frogs you are interested in. not just ask questions on here, but really research the husbandry of any species you are interested in.
and before you think i am just trying to talk you out of anything, i will tell you that i have been keeping frogs for a while now, and have kept aquariums for about 35 years. i have bred numerous species of fish a well as roughly 8 species of shrimp and a side kicker of cpo's. with all that said, frogs, i have found, have been the most challenging hobby in the glass cage world, and aren't to be taken on impulse. obviously, in the end, you will do as you wish, i just wanted to offer up some friendly advice.
