ATI Essential Nitro - 500 mL

ATI Essential Nitro is a nitrogen supplement from the ATI Essentials system for reef tanks where nitrogen has become limiting, such as ultra-low nutrient systems. Rather than nitrate alone, it combines organic and inorganic nitrogen sources, including urea and ammonium, that corals and microbes take up more easily.

Why nitrogen matters

• Nutrient-limited tanks: In ultra-low nutrient systems nitrogen can run out, leading to pale tissue and stalled growth.
• Multiple nitrogen sources: A balanced mix of urea and ammonium alongside traditional sources, so different corals and microbes can use the form they need.
• Polyp extension and color: ATI reports users typically see better polyp extension, and the protein building blocks support chromoprotein formation for deeper color.
• Amino acids and vitamins: Fortified to support overall vitality.
• Lower nitrate impact: Uses more efficient nitrogen sources to feed coral growth without spiking nitrate in the water.

Dosing

• Guideline: 0.5 mL per 100 L (26 gal) daily
• Adjust to your tank; watch coral response and monitor nutrient levels
• Works best alongside a stable phosphate level; see ATI Essential Phospho

Specifications

Frequently Asked Questions

Will it raise my nitrate? ATI formulates it to fuel growth without unnecessarily spiking nitrate, but monitor your nutrient levels as you adjust.

What pairs with it? ATI recommends keeping phosphate stable with Essential Phospho.