i have fed mine egg whit, cheese, chocolate,dried blood worms, cricket legs, misc insects i find...
mine is in a terrarium, and even with a 6" diameter fan blowing air around, i still get mold. a q-tip with rubbing alcohol usuallt takes care of that, though.
in my experience, d. adelae spreads easily from it's roots, and before you know it you will have many plantlets.
i'm curious, how do you feed milk to a sundew?
tech...