I'm sure there is a thread on this, but I did a quick search & didn't find anything but I'm confident there is a thread on this. I bought a pair of blue & black auratus a month ago at a frog party. And in the last month they have given me two sets of eggs (fertile & developing & have a few tads in cups) I didn't have a water feature or pond in their tank so two days ago I put a 8oz tad cup with water in for a temporary water soaking spot. Last night when I was frog gazing I thought I saw movement in the cup & to my surprise there was a tad swimming as bold as brass tacs. So I put it in a separate cup today and replaced the water cup & within 3 hrs. there was a new tad in the cup so I'm guessing these frogs have been saving tads in the leaf litter, but can't believe they didn't put more than one in there to begin with, I know that some tads are predatory but do the parents plan accordingly ?