I'd keep them very humid with a moderate amount of ventilation, with lots of bark hides and leaf litter. Keep them at around 74-80F°, feed them lots of fruits in addition to something like dog kibble, and they will likely breed OK.
The thing with most semi-aquatic Epilamprids is that they don't HAVE to be given a semi-aquatic setup, just keep the substrate pretty humid and it'll be fine. If you do give them water, it MUST be flowing water, still, standing water gets stagnant and dirty very easily and makes most Epilamprids sick!