While I don't keep any mixed tanks, I often wonder why the subject is so taboo in North America? It's done plenty in Europe and some of their vivs are amazing! What makes it such a sensitive topic here? Myself, if a keeper is experienced and wants to give it a try, I say, go for it. If experienced, you will see issues before you will see deaths. Keeping in mind that the frogs can't crossbreed, of course. Open discussion welcome, but keep it civil please.