Beginner Gardening: Black Hoya, 0 by JulieBo

JulieBo wrote:
I've just bought a Black Hoya plant. I can't find a whole lot of info on them.
I was wondering what kind of ferilizer to use.

Hoya cinnamomifolia var purpureofusca, H. purpureofuscavar. purpureofusca, H. purpureofusca

Are all the above the same plant?

Also when I received the plant I repotted it into a 6 inch pot. Then I read they like to be root bound. Should I repot it into a 4 in. pot now?
A lot of questions.
I cannot post in the Hoya forum so hope it's ok here.