Feeding them well is a great start. Any reason that you want them to mate? Its a bunch of work and unless you have a lot of free time will also take a bunch of your time.
I would turn the heat down to 78-80. Then feed a varied diet of good foods, both frozen and prepared. Feed at least 4 times a day. Give them a good area to lay eggs like a pot. An anemone may help. Make sure your parameters are spot on.