I say this, if the water says purified, is it really? Never buy anything but distilled water, de-ionized water, or reverse osmosis water. Or, collect rainwater. Labels are misleading. If it says bottled, drinking, or purified water, you may be the one causing the plants demise. Water is THE most important thing for VFT's, and any other water may just be causing them to expire. LABELS ARE MISLEADING. DON'T trust them!!! Any advice here is best followed for the best results for plant growth. Don't trust purifying filters either, or you can end up with VFT mush, and no plant at all.