Grow Media & Nutrients

Our curated selection of premium grow media and nutrient solutions helps cultivators build strong, healthy root systems and maximize plant performance. Hydro Supply Co. partners with trusted brands to deliver consistent quality, clean inputs, and reliable supply—supporting growers at every stage of cultivation.

Athena® – Precision Nutrition and Simplified Cultivation for Professional Growers

Athena® Ag was born in the grow rooms of Los Angeles, California, built by cultivators for cultivators. With a mission to make professional-grade cultivation simpler, more consistent, and more profitable, Athena engineers clean, efficient plant nutrition and crop management solutions that scale effortlessly from small craft grows to large commercial facilities. Every product line is designed with precision chemistry and grower insight, supporting optimal plant health, higher yields, and greater operational efficiency.

 
At the center of the Athena program are two flagship fertilizer systems — the Pro Line and the Blended Line. The Athena Pro Line features dry, soluble nutrients engineered for large-scale cultivators who demand accuracy, consistency, and cost efficiency. The Athena Blended Line offers liquid, ready-to-use nutrients for simplified mixing and everyday convenience. Both lines work seamlessly with Athena’s water conditioners, crop protection products, and cleaning solutions, delivering stable EC and pH, reduced biofilm, and enhanced nutrient absorption for superior plant performance.
 
Beyond nutrients, Athena extends its innovation into integrated plant care, including IPM (Integrated Pest Management), foliar enhancements, sanitation products, and tissue culture kits for genetic preservation. This holistic approach empowers growers to maintain clean systems, healthy roots, and pathogen-free environments, forming the foundation for a resilient and repeatable grow cycle.
 
Guided by science, real-world feedback, and a commitment to continuous improvement, Athena supports cultivators with comprehensive feed schedules, technical training, and facility advisors dedicated to maximizing every run. From propagation to post-harvest, Athena delivers on its founding promise: to create products that improve quality, reduce complexity, lower costs, and drive consistency — making the pursuit of the perfect grow not just possible, but predictable.

The CocoCore – Manufacturer-Direct Coco Substrates for Serious Growers

The CocoCore delivers high-quality coco substrates engineered for growers who demand reliability from the ground up. Unlike simple resellers, The CocoCore is the actual manufacturer, controlling every step of production through a tightly managed supply chain in India. Their team oversees sourcing, processing, washing, and buffering with exceptional attention to detail, resulting in clean, consistent, performance-driven coco products cultivators can trust in any grow environment.

The CocoCore product range is designed to support plants from propagation to finish, including compressed grow pots, propagation cubes, loose-fill media, and pre-filled grow bags. Each format is built around premium coco pith and blends that deliver the right balance of air, water, and structure. Whether you’re rooting delicate cuttings, scaling a commercial facility, or standardizing a multi-site operation, The CocoCore offers substrate solutions that are easy to handle, space-efficient, and optimized for healthy, vigorous root development.

From raw material selection to final packaging, The CocoCore maintains rigorous quality standards—triple-washed, properly buffered, and screened for uniform structure. Their coco is engineered to hit ideal pH, low EC, and consistent moisture-holding capacity while reducing excess salts and contaminants that can compromise plant health. This level of manufacturing control allows The CocoCore to guarantee dependable product quality, batch after batch, giving growers the confidence to run tighter recipes and more precise fertigation.

Built on integrity, sustainability, and hands-on manufacturing oversight, The CocoCore stands apart by delivering coco products that support stronger roots, healthier growth, and predictable results at scale. For cultivators and resellers seeking a substrate backed by real quality control, direct-from-manufacturer accountability, and a dedicated production team, The CocoCore provides unmatched consistency, value, and trust from start to finish.

Explore Our Product Options

  • Loose Fills 
  • Pre-Fills
  • Compressed Grow Pot
  • Propagation Cubes
The CocoCore CatalogThe CocoCore Products

Apera Instruments – Precision Measurement Tools for Smarter, More Reliable Cultivation

Apera Instruments is a global leader in high-precision water measurement technology, trusted by growers, labs, and horticulture professionals who require accuracy they can count on. Built on advanced sensor engineering and rigorous quality control, Apera’s instruments deliver dependable readings for pH, EC, DO, and other essential parameters that define plant health and system performance.

GrowStar Series – Designed for the Demands of Modern Cultivation

The GrowStar line brings Apera’s scientific precision directly into the horticulture and controlled-environment agriculture space. Engineered specifically for growers, GrowStar meters deliver fast, accurate, and reliable pH and EC readings with rugged construction, high-performance probes, and features tailored to the daily workflow of cultivation facilities.

With simple calibration, waterproof designs, and professional-grade accuracy, the GrowStar series empowers cultivators to dial in their feed programs, reduce variability, and maintain full control over their nutrient and irrigation systems.

From hobby growers to commercial multi-room operations, Apera Instruments provides the measurement confidence needed to grow smarter, stronger, and more consistently—every cycle.

Explore Our Product Options

  • Pocket Testers
  • Portable Meters
  • Benchtop Meters
  • Accessories