Sera Blackwater Aquatan Dark Water Treatment 100ml

Transforms tap water into humic-rich dark water. Essential for fish living in humic-rich waters. Does not affect the pH level of the water. Contains peat extract and a water conditioner, making additional water treatment unnecessary. Darkened water reduces sunlight penetration, thereby preventing algae growth. Creates soft, humic-rich water for tropical fishInstantly binds heavy metalsDoes not affect the pH level of the water