Water sources and quality

Watering cannabis from a pond or creek? Learn why surface water varies, how algae blooms and sediment cause trouble and when to test it.

Is melted snow fit for cannabis? See why clean snowmelt works well, why road and driveway snow carries salt and how to collect and warm it.

Should cannabis get spring water? Learn why its minerals vary, how bottled and backyard springs differ and which test readings to check first.

Can you water cannabis with dehumidifier water? Learn why it is nearly mineral free, what can get into the bucket and how to collect and use it well.

Can you water cannabis with fish tank water? See what nutrients it holds, why extra nitrogen can slow flowering and which tanks you should skip.

Is rice water good for cannabis? See what Extension guidance says about its nutrients, why amounts vary, what fermenting does and better options.

Does fluoride in tap water affect cannabis? See where it comes from, how leaf tip browning shows excess, which plants react and how to cut it.

Is distilled water good for cannabis? See why it stops mineral buildup, why it lacks calcium and magnesium and how to feed plants with it.