I remember someone bought up this matter some months ago. I have mine repotted on a shallow tray with sphagnum moss and peat soil.
It also has 5 off shoots after i trim back twice when the stem get more rigid and thick. Next it will be in a hanging pot as the foliages with pitchers are beginning to overgrown.
So far i have fertilize it twice over 3 months period with 4-6 pellets the size of green bean "Hoest fertilizer". Give plenty of water everyday. Hoest fertilizer is easily available ( as least for me, as my dad use alot in his pepper garden ( white/black pepper powder use on dinner table).It is not a very recommendable fertilizer for neps.as it's extremely alkaline. However i use it discreetly,so far so good.