I fertilize them with all the other orchids...over winter down around 40-80 ppm nitrogen. Here lately 100-180 ppm nitrogen. No supplemental heat. I have thought about adding a heat mat for flasklings/seedlings though. I have quite a few different community pots...I treat them like all the other...
The plant looks good to me.
Since it is new, I vote repot...place it upright and I believe it will do good.
4 parts bark, 1 part perlite, 1 part charcoal if you can find it.