Liquid Ca, Mg & Fe supplementation — formulated to correct deficiencies without disrupting elemental balance.
Athena Blended CaMg (2-0-0) is a liquid calcium, magnesium, and iron supplement designed to run alongside the Athena Blended two-part base program. The 55-gallon drum format (SKU: LQB-CM-55G) is sized for commercial operations running high-frequency fertigation through coco, rockwool, or recirculating systems.
Athena Blended CaMg is a liquid mineral supplement in the Athena Blended Line — a no-dry-salt, two-part liquid nutrient program built around Grow A/B for vegetative stages and Bloom A/B for flowering. CaMg sits outside the two-part base as an on-demand additive, not a fixed component of every reservoir mix.
The NPK is 2-0-0, with all nitrogen delivered as nitrate nitrogen. The guaranteed analysis lists 2.1% calcium, 1.1% water-soluble magnesium, and 0.06% chelated iron — a targeted micronutrient stack that corrects the three deficiencies most commonly triggered by heavy vegetative demand, inert media, or low-mineral source water. Because the iron is chelated, it remains plant-available across a wider pH range than non-chelated sources.
The formula is sediment-free and compatible with all dosing and irrigation systems, including fine dripper heads and Dosatron injectors. The 55-gallon drum is the commercial-scale SKU (LQB-CM-55G), suited to operations that would otherwise cycle through smaller bottles at high frequency.
Any cultivation operation running the Athena Blended program on RO water or in inert media — coco coir, rockwool, or recirculating hydro — should have CaMg available. RO water strips baseline mineral content, and inert substrates provide no buffering of their own, which means calcium, magnesium, and iron must be supplied entirely through the nutrient solution. The Blended A/B base covers typical demand, but high-intensity lighting, high transpiration rates, and fast-cycling cultivars can push Ca and Mg requirements past what the base alone supplies.
It is also useful in soil or peat-based media when plant tissue or runoff EC analysis points to Ca/Mg tightness during transition into heavy flower. The product is applied at the same rate across all growth stages — propagation, veg, and flower — so there is no separate protocol to manage per phase.
Commercial operators running the 55-gallon drum will typically dose via Dosatron or inline injector. The drum format eliminates per-feed decanting from smaller containers and reduces handling time across multi-tier or large-canopy rooms.
The formulation is built to correct Ca, Mg, and Fe deficiencies without shifting the overall elemental ratios established by the Blended base. Overloading calcium relative to magnesium, or adding iron in a non-chelated form that locks out at high pH, are common problems with generic cal-mag products. Athena's ratio — roughly 2:1 Ca to Mg, with chelated Fe — is consistent with the rest of the Blended program's mineral balance.
Sediment-free liquid means no settling, no pre-mixing, no strainer clogs. The formula passes through fine dripper heads and is compatible with automated dosing systems. Shake well before use; use clean measuring instruments and do not introduce anything into the container that could contaminate the batch.
Application rate is 2–10 mL per gallon depending on cultivar demand and source water mineral content. The standard starting point referenced in Athena's feed schedule is 2.5 mL/gal. Adjust based on tissue analysis, runoff EC trends, and observed plant response. Some cultivars and high-light environments will require the upper end of the range during peak vegetative stretch.
In a commercial Athena Blended program, CaMg is dosed after the base A and B parts are mixed into the reservoir, following Athena's recommended mixing order. It runs through the same irrigation events as the base feed — no separate feed days required. Operations using the Blended Line through an automated fertigation controller can set a dedicated CaMg channel or pre-mix into the head tank if their system design allows.
The 55-gallon drum (LQB-CM-55G) provides a commercial-scale supply that pairs with other Athena Blended drum-format products including Grow A/B, Bloom A/B, Balance, and Cleanse. Running the same brand's ecosystem at drum scale reduces the number of suppliers a facility procurement team manages, and Athena's consistent labeling and EC-based dosing structure makes it straightforward to bring new staff up to speed on the program.
HSC supplies Athena Blended CaMg nationally to licensed cannabis and hemp operators. Contact us for a quote on the 55-gallon drum or to discuss volume requirements for your facility.
| SKU | LQB-CM-55G |
| Brand | Athena |
| Product Line | Blended Line |
| NPK | 2-0-0 |
| Total Nitrogen (N) | 2% (100% Nitrate Nitrogen) |
| Calcium (Ca) | 2.1% |
| Magnesium (Mg) | 1.1% (Water Soluble) |
| Iron (Fe) | 0.06% (Chelated) |
| Application Rate | 2–10 mL per gallon; standard feed schedule start point 2.5 mL/gal |
| Container Size | 55 Gallon Drum |
| Formula Type | Liquid, sediment-free |
| Compatible Media | Coco coir, rockwool, recirculating hydro, peat, soil |
No. The Athena Blended A/B base already provides calcium and magnesium at levels sufficient for many grow conditions. CaMg is an on-demand supplement for situations where demand exceeds what the base supplies — typically RO water, inert media like coco or rockwool, high-intensity lighting, or cultivars that run particularly high calcium requirements during heavy growth phases. Consult Athena's published feed schedule and adjust based on plant response and runoff readings.
Athena CaMg is designed to supplement the Blended Line two-part formulas. The Pro Line has its own calcium-magnesium-micronutrient component (Pro Core) built into its program structure. If you are running Pro Line, consult the Pro Line feed schedule before adding Blended CaMg, as double-dosing calcium and magnesium can create imbalances.
At commercial fertigation volumes, smaller containers create significant handling labor and per-unit cost inefficiency. The 55-gallon drum (LQB-CM-55G) integrates directly with inline dosing systems and eliminates the need to open, measure from, and dispose of individual bottles across multiple feed events per day. For facilities running multiple grow rooms or high canopy square footage, the drum format is the practical choice.
The iron in CaMg is chelated iron, meaning it is bound to an organic molecule that keeps it soluble and plant-available across a wider pH range than standard iron sulfate or iron oxide sources. Chelated iron is less prone to precipitating out of solution or locking out at slightly elevated pH, which is particularly important in recirculating systems where pH drift between top-offs can affect micronutrient availability.
Yes. The Athena Blended CaMg formula is sediment-free and compatible with Dosatron injectors and fine dripper irrigation heads. As with any concentrate, use clean measuring instruments and do not introduce any contaminants into the drum. Some applications may require dosage adjustments from the standard rate — reference Athena's feed schedules and monitor runoff EC and pH.
Get operator-direct pricing and availability. We supply licensed commercial cultivators nationwide.
Request a Quote