Calcium-nitrogen foundation that runs every stage — from clone through late flower.
Athena Pro Core (14-0-0) is the always-on base of the Athena Pro Line: a fully soluble dry calcium ammonium nitrate formula delivering nitrogen, calcium, and a chelated microelement package that stays in the feed tank from week one to flush. Zero particulates, zero sediment — built for high-volume commercial fertigation.
Pro Core is the constant component of the Athena Pro Line — a three-part dry soluble programme designed for commercial cultivators running stock-concentrate fertigation. While Pro Grow (2-8-20) and Pro Bloom (0-12-24) rotate by stage, Pro Core stays in the tank throughout the entire cycle, supplying the calcium and nitrogen backbone that neither of those products is designed to carry.
The formula is built on calcium nitrate as the primary salt, with a chelated micronutrient package — Iron EDTA, Manganese EDTA, Copper EDTA, Zinc EDTA, Boric Acid, and Sodium Molybdate — homogenously coated into the granule for consistent dissolution. The result is a clean, large-grind dry concentrate that mixes to a clear solution with no sediment, no particulates, and no residue in lines or emitters.
Pro Core is specified for licensed cannabis and hemp operations running automated fertigation at scale — multi-zone drip, drain-to-waste coco, and recirculating hydro systems where clogged emitters or inconsistent nutrient delivery directly cost yield. It is engineered to be compatible with Dosatron injectors, Netaflex dosing systems, and Rhythm controllers right out of the bag.
The dry format is the economic argument at commercial volume. Shipping and storing concentrated dry salts versus pre-diluted liquid nutrients means significantly lower cost-per-gallon at the bench. Operations running large stock tanks — centralized mixing rooms, multi-room facilities, greenhouse ranges — see the clearest advantage. The 25 lb bag (SKU: PRO-CORE-25) is the standard commercial format; pallet quantities are available through HSC.
100% water solubility is the headline. The large-grind formulation dissolves completely at room temperature with agitation, leaving no undissolved salt in reservoirs or filters. Low heavy metal content is a documented specification — relevant for operators in regulated markets where input documentation and product purity matter at audit or testing time.
Microelements are evenly coated across the granule, not blended as a separate powder fraction. This means every scoop is consistent regardless of where you pull from the bag — no stratification, no hot spots in the mix. Dosing is by weight, not volume: Athena's feed schedules express Pro Core rates in grams per liter or ounces per gallon and Pro Core runs at approximately 60% of the Pro Grow or Pro Bloom dose at equivalent EC targets. Always measure on a calibrated scale.
Pro Core is the Part A in Athena's dry two-part system. It should never be combined with Pro Grow or Pro Bloom in dry form or in the same concentrate container — mix each part separately into water first, then combine the diluted solutions. The recommended stock-tank ceiling is 2.5 lb of Pro Core per gallon of water; agitate until fully dissolved before injecting or further diluting.
For constant-EC programmes — where irrigation frequency rather than nutrient concentration drives plant feeding — Pro Core's stability means EC readings stay predictable across long run times. It works across all inert substrates (rockwool, coco, perlite) and in recirculating systems. Pair with Athena Pro Grow through veg and early transition, switch to Pro Bloom for flower while keeping Pro Core in the A-tank, and taper with Athena Cleanse as you approach harvest. HSC supplies the full Athena Pro Line — quote requests for single bags through pallet volumes handled directly.
| NPK Analysis | 14-0-0 |
| Primary Nutrient Sources | Calcium Nitrate |
| Micronutrient Sources | Iron EDTA, Manganese EDTA, Copper EDTA, Zinc EDTA, Boric Acid, Sodium Molybdate |
| Physical Form | Dry soluble granule (large grind) |
| Solubility | 100% water soluble — no particulates or sediment |
| Heavy Metal Content | Low (per Athena specification) |
| Max Stock-Tank Rate | 2.5 lb per 1 gallon of water |
| Reservoir Dose Ratio | ~60% of Pro Grow or Pro Bloom dose (by weight) |
| Compatible Dosing Systems | Dosatron, Netaflex, Rhythm, and comparable injector systems |
| Package Size (this SKU) | 25 lb bag (PRO-CORE-25) |
Pro Core runs the full cycle — from early veg through the final weeks of flower. It is the constant base of the Athena Pro Line programme. Pro Grow and Pro Bloom rotate by stage; Pro Core does not. Athena's published feed schedule keeps it in the tank at consistent rates alongside whichever stage-specific part is active.
Athena recommends converting Pro Core into a stock concentrate before adding it to the reservoir. Mix up to 2.5 lb per gallon of water, agitate until fully dissolved, then inject or dilute into the feed tank. Mixing Pro Line products in small amounts directly into a full reservoir is discouraged because it limits your ability to dial EC precisely.
No. Pro Core is a 100% water-soluble, large-grind formulation with no particulates or undissolved sediment once properly mixed. It is specifically designed for Dosatron, Netaflex, Rhythm, and comparable commercial fertigation systems and will not leave residue in lines, emitters, or reservoirs.
No. Do not combine any Pro Line products in dry form or in the same concentrated stock solution. Each part must be dissolved separately in its own container. Once diluted to working strength, the solutions can be combined in the feed tank. Mixing concentrates together risks precipitation and an uneven final solution.
Yes. HSC supplies Athena Pro Core in the 25 lb commercial bag (SKU: PRO-CORE-25) and can accommodate larger volume orders. Use the Request a Quote button to specify quantity and your facility's shipping address — we handle commercial accounts nationwide.
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