Dendrobium flask temperature

[Mr.Fakename]

There's no consensus about the best temperature, as it depends a lot on the plant and the experiment.

The good thing is that they'll already be acclimated to your temperature range when you deflask them.

I agree with ES, no full sun or the seedlings will get toasted.

If I were you I'd put cling wrap around the vessels to limit air movement; the temperature difference between day and night can cause pressure difference between them and the exterior, and if the flasks deform, contaminants can get in.