I'm a bit confused on why you posted photos of VFTs that are not yours to get an answer on the health of yours. Were you wishing to ask if you could compare yours to those or something?
Just be sure neither the peat or perlite has any additives to them. Such as any suggestion that their might be plant food/fertilizer in them or that minerals might have been added to make the ingredients' pH "neutral". Definitely stay away from Micracle-Gro products if you have those in your area.
190-200ppm is high. Maybe just once in a while would be okay, it's better than the plant dying from lack of water. You might could add four parts rain/distilled water to one part of you tap water to stretch your good water out a bit. But, then there are possible contaminants in the tap water such as chlorine, cloramines, copper, etc.,... For one or two flytraps, a gallon of distilled water will last at least a few weeks, maybe even a couple of months. Best wishes!