The D. reticulatus are beautiful frogs, but they are incredibly tiny, which you may find intimidating. However, I haven't found mine to be particularly difficult otherwise. They are bold little guys and I find them out and about a lot. Mine are laying eggs, but these have gotten messed up before I could remove them. I had planned to leave them for about 3 days to make sure they were all fertile, but that was obviously too long. Neither have I been able to identify the sexes, so don't know which to separate. For a first thumbnail, I agree that the D. imitator are great. If you have the proper set-up with bromeliads, they may even raise their own tads, which is fun to watch. The females will fight, eat and mess up each other's eggs. The fights are fierce, but they don't seem to actually injure each other. So once you detect a pair, it's best to separate the others if you want to either watch or remove the eggs and raise them yourself for a higher success rate. Mine have raised perhaps one tad at a time in a group, and both females fed it once the male transported it, although the "auntie" got chased away if the mama caught her at it. I did separate one known pair, after which, although they are laying eggs, they have become very shy. In the group situation they were quite bold, and the remaining group remains in sight most of the time.
There's currently a prolonged discussion on frognet on lamasi. This comes as an e-mail in a format that is very repetitive and tedious to read, so not being interested in the lamasia at this point, I've skipped over these discussions. I think EdK has participated, so he may be able to tell you more about it.
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Patty
Pahsimeroi, Idaho
4 D. auratus blue
5 D. galactonotus pumpkin orange splash back
5 D. imitator
6 D. leucomelas
4 D. pumilio Bastimentos
4 D. fantasticus
4 P. terribilis
4 D. reticulatus
4 D. castaneoticus