Thanks for the info! I never would have thought about the different secretions from their skins harming one another. The way you put it, it sounds kinda like what would happen if you put two different leather corals too close together; you end up with chemical warfare that pollutes the whole tank. And I suppose I could see miss Salsa gobbling up a leucomelas. She is quite voracious when it comes to eating. Sometimes I can't get my hand out of the way fast enough! I've got a spare 29 gallon with a blacked out back panel and 20 lbs of fluorite gravel I could set up as a dart viv. (that's if my seahorses decide to quit having babies).

Something else just came to mind...if different secretions from other frogs can be harmful, then are they susceptible to human born viruses and bacteria as well? the reason I ask is, I just cleaned their viv yesterday and I had to move them to a holding container to change the substrate, and scrub everything down. I just came down with a nasty case of bronchitis (which is usually viral). Is it possible I may have given it to them?