I have a 60 gallon tank w/8 green frogs; 3 are female; all have reached sexual maturity. The male frogs keep making their calls and pairing up with eachother, on an off; they are only rarely pursuing the 3 females, - the females seem to be completely dissinterested. Could it be that the females that i collected already laid egges this season. Can i do something to induce their interest in breeding? Extra feeding? Temperature? im from new jersey. I'm surprised that the males cannot tell that they are attempting to mate with other males, instead of females.

My green frogs are still laying a ton of eggs. Most of mine had died off but now there seems to be a bumper crop this year with eggs all over. Males will mount each other and fight a little. Because your tank is crowded, they may simply end up together in the confusion. I think the main problem in that you have too many frogs in too small a space. You need to mimic nature. I suggest reducing the quantity down to just one male with a few females. Feed lots of yummy live bugs - earthworms, mealworms, crickets, moths, etc. Keep it warm - 80 degrees F during the day with natural or fluorescent lighting, 70 at night. It takes just the right natural triggers to get things right. You might want to set up an outdoor small pond for them. I'd bet they'd breed then. Wild frogs deserve to be able to do their froggy thing and hop all around which is hard to do in captivity.

I will reduce the number of males, as you suggest. I have a light for them for tropical fish - i think its intended for aquarium plant cultivation and gives off UV light, intentionally. Do you think this will harm amphibians? The light is a sort of light purple, but white light when it hits a reflecting surface.

Too much UV light can cause abnormalities in the tadpoles. If it's meant to mimic sunlight, than it's probably safe enough, as long as it's not too intense and close to the frogs. I use Triton plant fluorescent lights. I think they should be safe enough.