Did you know that common houseplants and even pond plants are nitrate-munching machines? Take the humble duckweed or water hyacinth. If you have a rain barrel or a small pond, toss a few in. They suck up nitrates like teenagers finishing a pizza. It’s nature’s filtration system—free, green, and pretty.
For your kitchen counter, a peace lily in a water-filled vase? Not exactly. But you can build a simple “plant filter” using a bucket, some gravel, and fast-growing herbs like mint. The mint roots will feast on the nitrates, leaving you with cleaner water. It’s a little messy, but it’s also a fun weekend project.
3 Ways to Remove Nitrates from Water - wikiHow Health
