Vegetarian Food Traps

Venus Fly Traps are quite interesting plants, with a number of evolutionary adaptations that allow them to live in an environment that's deficient in the nutrients needed for plants to thrive.  This comes at some cost in adaptability to other environments.  Websites and videos created by enthusiasts explain the VFTs' need for pure water, even distilled water, rather than tap water or any other water that contains dissolved minerals or salts.  They need to grow in something like sphagnum moss, which doesn't decompose quickly even if it's kept moist, and has almost no nutrients.
( The experiment... )