They will breed when they are ready. I have a Hoga pair that has been showing signs for 4 months and still nothing. Give her a place to hide, caves, pipes that she can fit in but he can not. Raise the temp back up, and when you do a water change, just do a 25% water changes with outside faucet water. Simulate the cold rains and breeding behavior by doing this. I use straight cold water for all my changes and I have pairs everywhere. Then again its like humans, just because your parents think that you are a cute couple, doesnt mean that you or her are interested/attracted.