Concentrated Nitrogen Source & Growth Accelerant for all Planted Aquaria Overview Concentrated source of nitrogen, one of the most important plant nutrients, required for growth and long-term health, and utilized primarily in the production of nucleic acids and proteins, accounting for up to 2% of plant tissue dry weight. Nitrogen is present as nitrate, a form appropriate for use in aquaria (ammonium can revert to toxic ammonia in aquaria with pH over 7.0; urea is a source of ammonia). Contains Kelp extract, which provides natural phytohormones found to encourage growth and flowering. Formulated utilizing extensive research on aquatic plant nutrient requirements.