Nitrogen-free late-flower feed that strips N while protecting Ca and microelements through ripening.
Athena Fade (PRO-FD-5G) is a liquid, nitrogen-free finishing formula designed to replace Pro Core in the final 2–3 weeks of flower — removing the nitrogen that suppresses maturation while continuing to deliver the calcium and microelements plants cannot source from stored reserves.
Athena Fade is a concentrated liquid finishing formula that occupies a specific, narrow role in the Pro Line program: it replaces Pro Core during the final two to three weeks of flowering. The switch removes all nitrogen from the feed — nitrogen being the primary element known to delay flower maturation and suppress the accumulation of terpenes and other desirable compounds — while keeping the rest of the nutrient profile intact.
Where a traditional plain-water flush strips the medium of everything including calcium and microelements, Fade holds those immobile nutrients in place. Calcium cannot translocate from older tissue to developing flowers on its own; if it's not coming in through irrigation, late-stage calcium deficiency becomes a real exposure, particularly in terms of cell wall integrity and susceptibility to bud rot. Fade was built specifically around that vulnerability.
Fade is positioned for commercial cultivators running the Athena Pro Line who want a controlled, repeatable finishing protocol rather than a plain-water flush or an abrupt nutrient cutoff. It is particularly relevant in high-density indoor operations — hydro, coco, rockwool — where calcium mobility is already limited by the inert substrate and any late-cycle deficiency shows up fast.
If your finishing practice currently involves dropping to straight water for the last week or two, or if you're seeing late-cycle calcium issues, bud rot susceptibility, or inconsistent terpene expression across runs, Fade gives you a structured replacement that maintains Ca and microelement delivery without re-introducing nitrogen. It fits directly into the existing Pro Line feed schedule without requiring a separate mixing or dilution step.
Nitrogen-free formulation: the complete absence of nitrogen is the defining functional characteristic. Removing nitrogen at the end of cycle supports the natural senescence process — chlorophyll degradation, which in turn influences flavor and aroma profile development. The plant is signaled to complete its reproductive cycle rather than continue pushing vegetative metabolism.
Immobile nutrient retention: calcium and essential microelements are provided at levels sufficient to prevent deficiency without overfeeding a plant that is winding down uptake. Athena's internal testing found that running Fade alongside Pro Bloom for the final three weeks of flower increased total cannabinoid and terpene production without increasing deficiency risk or bud rot incidence.
Drop-in replacement for Pro Core: Fade is dosed at the same concentration rate as Core, so it integrates into existing batch-mixing workflows without recalculating concentrate ratios. The dilution rate (10–19 mL per gallon) matches what Pro Line operators are already running for Core, making the protocol switch operationally clean.
In a standard Athena Pro Line program, Fade enters at the start of the final 2–3 week window before harvest. Pro Core is discontinued; Fade takes its place alongside the continued Pro Bloom feed. EC is monitored and adjusted per crop response — Athena's published feed schedules provide week-by-week EC targets for the Fade window.
For large-volume operations running multi-tank fertigation systems, the 5-gallon format (PRO-FD-5G) is the practical choice — it reduces handling frequency and maintains consistency across tank mixes. Because Fade functions as a direct Core substitution, no additional program restructuring is required; the rest of the Pro Line stack (Pro Bloom, Cleanse, Stack if used) continues unchanged through the finish window.
Hydro Supply Co. supplies Athena Fade nationwide to licensed cannabis and hemp cultivation operators. Request a quote for volume pricing on the 5-gallon unit.
| SKU | PRO-FD-5G |
| Brand / Line | Athena / Pro Line |
| Form | Liquid concentrate |
| Container Size | 5 Gallon |
| Nitrogen (N) | 0% — nitrogen-free formula |
| Key Nutrients Delivered | Calcium (Ca), microelements |
| Application Rate | 10–19 mL per gallon of water |
| Use Window | Final 2–3 weeks of flower |
| Replaces in Stack | Athena Pro Core (final 2–3 weeks only) |
| Compatible Systems | Hydroponic, coco, rockwool, soil; all automated drip / flood systems |
Fade replaces Pro Core only. Pro Bloom continues to run alongside Fade through the final 2–3 weeks of flower. The two products are used together during the finish window — Fade is not a standalone finisher, it is a Core substitution that removes nitrogen while Pro Bloom maintains the phosphorus and potassium profile.
Plain-water flushing strips calcium and microelements along with nitrogen. Calcium is immobile — the plant cannot pull it from older tissue and redistribute it to developing flowers. Removing calcium in the final weeks increases the conditions favorable to bud rot and can cause late-stage cell wall breakdown. Fade removes nitrogen specifically while continuing to deliver calcium and microelements, so the ripening process completes without those deficiency risks.
No. Fade is formulated to run at the same dilution as Pro Core in a 2 lb-per-gallon concentrate system. The application rate is 10–19 mL per gallon of final solution. Because the rate matches Core, existing batch-mix SOPs require no modification — just swap Core for Fade at the start of the finish window.
Yes. Athena's Pro Line, including Fade, is designed for large-scale automated irrigation — it is one of the primary reasons the dry/liquid concentrate format was built to mix at high volume. Fade integrates into any system that was already running Pro Core: multi-tank fertigation, drip, NFT, flood-and-drain. Monitor EC regularly and adjust per crop response during the finish window.
Athena positions Fade as part of the Pro Line program, where it replaces Pro Core. The Blended Line uses a different two-part structure (Bloom A+B). Confirm with your Athena feed schedule whether Fade is approved for use within a Blended Line program before substituting — the Pro Line feed schedule is the primary documented use case.
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