Cattleya Dowiana - Winter Rest

[mopwr]

Hey guys, been trying out - and doing really well with - semi-hydro for a variety of plants - right now mostly cattleyas. I have a Dowiana seedling that I got with almost no roots that I actually managed to rescue with semi-hydro. It's still tiny, but grew two leads early this season and now it's starting a brand new - looking to be much larger - growth.

I know that Dowiana typically needs a winter rest, but in semi-hydro, plus growing under lights with controlled temps (82F day / 65F night), I'm not sure when that will happen. Also, with it pushing a new growth, I guess I fertilize as normal until it's done maturing?

For the "resting" phase, do I just water with pure water? Let it go a bit drier? Just looking for any experience here with managing the rest periods in semi-hydro. Thanks!