Choosing Water for Venus Flytraps: Testing Well Water vs. Rainwater

Water Purity Is Non-Negotiable

Venus flytraps require water with <50 ppm total dissolved solids (TDS). Higher mineral content burns roots, leading to decline and death.

Testing Your Well Water

1. Purchase a TDS meter or aquarium hardness test kit (liquid drop tests are more accurate than strips).
2. Test well water directly.
3. If TDS > 50 ppm: Use rainwater, distilled, or RO water exclusively.
4. If TDS < 50 ppm: Well water is safe.

Many Florida wells exceed 200 ppm due to limestone aquifers. Don't guess—test. The cost of a TDS meter ($15–20) saves plants.