Adult male eyelash frogs are generally a bit smaller than females but it's easy to confuse a small female with a large male and vice-versa. The most reliable way to tell the two apart is to place them in a clear container and shine a light on their lower abdomen to see through their skin. Males will visibly have two ureters (look like two small lines) while females will still have ureters but they won't be visible because they are covered by their reproductive organs. Both males and females will call which is also kind of interesting.
I don't have any personal experience breeding these frogs but I've picked up a few suggestions from books, magazines, the internet and other hobbyists. Females will swell up with eggs after a large increase in humidity. Some people even recomend setting up a rain chamber for these frogs but others have had success without one. Make sure that the soil doesn't become water-logged from all the misting/raining. It can be difficult to do this without an area to drain excess water from or a drain in the bottom of the aquarium. I've never read about males refusing to fertalize eggs before so if you can convince your females to produce eggs there is a good chance you'll (or maybe I should say they'll) be successful.
I think the best thing you can do now is just wait. Let your new frogs adjust to their new enviornment. Your frogs have gone from the wild, to an exporter, shipped across the world to a wholesaler, possibily to another dealer, possibly to a pet store and have now finally ended up in your hands. Let them settle in and make sure they are recovering from the stress of shipping. Eyelash frogs are famous for being very sensative for the first few months that they are in captivity but if you can get them past that stage then they are supposed to make hardy captives. One thing I would recomend doing is replacing your current soil with one that doesn't contain vermiculite or perlite. Those little white balls will be absolute hell to pick off of eggs if you do have luck breeding them. Coconut husk fiber or a mix of it and leaf compost would work very well.
I'd recomend picking up a copy of the collection of articles from the Internation Herpetological Symposium in 1996. You can get it from http://www.kingsnake.com/ihs/ and then clicking advances in herpetoculture. There is an excellent, probably the best published, article about eyelash frogs with detailed information about natural history, captive care, reproduction and froglet care. Patrick Nabors of www.saurian.net is breeding eyelash frogs so you could always shoot him an email asking for advice too. Good luck,
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Devin
devin@amphibiancare.com
www.amphibiancare.com
0.0.4 Dendrobates galactonotus 'Red'
4.1 Dendrobates tinctorius 'Dwarf French Guiana'
1.1 Dendrobates tinctorius 'Powder Blue'
5.1 Mantella aurantiaca
2.1 Mantella crocea
0.1.4 Mantella madagascariensis
1.0 Ceratophrys cranwelli
1.0 Bufo americanus
0.0.1 Salamandra salamandra
1.0 Ambystoma tigrinum
0.1 Chamaeleo calyptratus
0.1 Phelsuma dubia
1.1 Uroplatus ebenaui
0.0.1 Chrysemys picta belli
1.0 Terrapene carolina triunguis