Honestly I'd put it inside a larger bin and have the lamp shining on that just so a larger environment is being heated, which will probably keep things more stable inside than the small container.
I recently was given the opportunity to work with Rochaina yet again! This time, an ootheca of R.bilunata (formerly a Paratropes species) from Costa Rica.
The last time I had a Rochaina ooth (of R.peruana specifically) I failed to incubate it successfully. However, not only do I suspect that...