Feeding while overwintering and superthrive Q

When I bring my tropicals in for overwintering, do I absoloultley avoid feeding them?

Also, my tropical hibiscus seem to burn very easily, so I stopped feeding them. So my question is, will SUPERthrive (vitamen B) burn them also?

And can I use SUPERthrive on carnivorous plants? I know they don't like nutrients but I was in a carnivorous plant forum and they mentioned using it.

Thanks for any help!

Never feed overwintering plants in a dormant state.....if the plants are growing actively then feed 1/2 strength during winter and never more than once a month.
I would check with the carnivourus plant people about the superthrive before using.Better safe then sorry. :-)