This species tends to be somewhat unpredictable! Some are flighty, some are prolific, some are active, some are nice colored. There are reverses of all of these things with R. sara. When breeding come into effect this really can play tricks on ones head. I think the best thing to do is to first observe you pair! Know how they react to every minascule aspect of usual occurances.
After doing so, the best method I have found with breeding them is the following. Cool them at very low temperatures and reduce misting and stop feeding for a two month period or so. Start to slowly raise temps. and then mist the heck out of them. Make all efforts to mist the fire out of them twice a day. This really seems to trigger breeding. Feeding will soon start to increase as they begin to get active. Make sure and not OVERFEED as they can become obeast quickly! Now the tricky part comes. A lot of females will not lay their eggs until they feel everything is right. I mean everything. I have waited two in a half months for eggs thinking a female was eggbound. One day you will find eggs. I always found eggs in the nest box. I also had live Ficus in the cage which werent used. Make sure to load the babyfood with Calcium as the females lay nice sized eggs. R. sarasinorum are over look and under appreciated. They are not as easy as many think. I think the best piece of advice is observing your pair or group. I found that pairs have a bond to them. However, in groups they get along as well.
Treat the babies like adults, but the tend to not feed as quickly as R. ciliatus. At flucating temps of 68-75 I hatched out all but one females. As far as TDS I donnot know how true this holds. That was my exspierence. Good Luck

Geckos By Brad