Aquarium Nitrate & Nitrite Test Strips

Monitor aquarium and aquaculture water quality with Indigo^® Nitrite-Nitrate test strips. These simple tools can detect toxic nitrite and nitrate buildup to protect fish health and biofiltration balance.

Indigo^®Nitrite-nitrate test strips provide a fast, reliable way to monitor water quality in aquariums and aquaculture systems. Nitrite is highly toxic to fish even at low concentrations, while nitrate buildup can fuel algae growth and stress aquatic life. These simple dip-and-read strips let you track nitrogen cycle stability, evaluate filter performance, and safeguard fish tank environments without the need for complicated liquid test kits. Ideal for hobbyists and aquaculture professionals, they support proactive water management and healthier aquatic ecosystems.