Skip to content

Cal Mag Additives

Cal Mag additives contain all the elements to keep your plants green and growing. This supplement can be used to correct calcium and magnesium defficiencies.
  • HydroDionnne Calcium Nitrate (15.5-0-0) - Hydrodionne
    HydroDionnne Calcium Nitrate (15.5-0-0) - Hydrodionne
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $13.95 - $16.95
    $13.95 - $16.95
    Current price $13.95

    Hydrodionnne Calcium Nitrate (15.5-0-0)

    HydroDionne

    HydroDionnne Calcium Nitrate (15.5-0-0) Is a highly formulated blend of Calcium, that promotes vigorous and healthy plant growth for both soil and ...

    View full details
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $13.95 - $16.95
    $13.95 - $16.95
    Current price $13.95
  • Green Planet Nutrients - GREEN PLANET PRO CAL - Cal Mag Additives - Hydrodionne
    Green Planet Nutrients - GREEN PLANET PRO CAL - Cal Mag Additives - Hydrodionne
    Original price $13.95 - Original price $184.95
    Original price
    $13.95 - $184.95
    $13.95 - $184.95
    Current price $13.95

    Green Planet Pro Cal

    Green Planet Nutrients

    GREEN PLANET PRO CALProduct Code: 606512 – 0 – 0ADDITIVE NUTRIENT   VEGETATIVE STAGE   FLOWERING STAGE   LIQUID FERTILIZER   Calcium and magnesi...

    View full details
    Original price $13.95 - Original price $184.95
    Original price
    $13.95 - $184.95
    $13.95 - $184.95
    Current price $13.95
  • GH CALIMAGIC CALCIUM + MAGNESIUM - Hydroponics Club Canada
    GH CALIMAGIC CALCIUM + MAGNESIUM - Hydroponics Club Canada
    Original price $25.99 - Original price $64.99
    Original price
    $25.99 - $64.99
    $25.99 - $64.99
    Current price $25.99

    Gh Calimagic Calcium + Magnesium

    General Hydroponics

    General Hydroponics CALIMAGIC  provides the supplemental elements necessary to optimize plant nutrition and to prevent all-too-common problems.Calc...

    View full details
    Original price $25.99 - Original price $64.99
    Original price
    $25.99 - $64.99
    $25.99 - $64.99
    Current price $25.99
  • ADVANCED NUTRIENTS SENSI CAL-MAG XTRA - Hydroponics Club Canada
    ADVANCED NUTRIENTS SENSI CAL-MAG XTRA - Hydroponics Club Canada
    Sold out
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $19.95 - $60.95
    $19.95 - $60.95
    Current price $19.95

    Advanced Nutrients Sensi Cal-Mag Xtra

    Advanced nutrients

    ADVANCED NUTRIENTS SENSI CAL-MAG XTRAFeed Your Crops the ExtraCalcium, Magnesium, and Iron They Need If You Use a Non-Advanced Base NutrientPlants ...

    View full details
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $19.95 - $60.95
    $19.95 - $60.95
    Current price $19.95
    Sold out
  • JURASSIC CAL-MAG 250G - HydroponicsClub
    JURASSIC CAL-MAG 250G - HydroponicsClub
    Original price $29.49 - Original price $169.49
    Original price
    $29.49 - $169.49
    $29.49 - $169.49
    Current price $29.49

    Jurassic Cal-Mag

    Jurassic

    Jurassic Cal-Mag Is a highly enriched formulated blend of Magnesium, Calcium and Iron, that promotes vigorous and healthy plant growth for both soi...

    View full details
    Original price $29.49 - Original price $169.49
    Original price
    $29.49 - $169.49
    $29.49 - $169.49
    Current price $29.49
  • NUTRI+ CM PLUS - HydroponicsClub
    NUTRI+ CM PLUS - HydroponicsClub
    Original price $13.49 - Original price $189.95
    Original price
    $13.49 - $189.95
    $13.49 - $189.95
    Current price $13.49

    Nutri+ Cm Plus

    Nutri+

    NUTRI+® CM PLUSSpecialized fertilizer for household plant gardeningNUTRI+® CM PLUS is a supplement of Nitrogen, Calcium, Magnesium and trace elemen...

    View full details
    Original price $13.49 - Original price $189.95
    Original price
    $13.49 - $189.95
    $13.49 - $189.95
    Current price $13.49
  • Botanicare - Botanicare Cal-Mag Plus - Cal Mag Additives - Hydrodionne
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $30.99 - $166.99
    $30.99 - $166.99
    Current price $30.99

    Botanicare Cal-Mag Plus

    Botanicare

    Botanicare Cal-Mag Plus is a specialized calcium, magnesium & iron, plant supplement designed to compensate for deficiencies in some commercial...

    View full details
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $30.99 - $166.99
    $30.99 - $166.99
    Current price $30.99
  • Athena - ATHENA CAMG - Cal Mag Additives - Hydrodionne
    Athena - ATHENA CAMG - Cal Mag Additives - Hydrodionne
    Original price $65.00 - Original price $290.00
    Original price
    $65.00 - $290.00
    $65.00 - $290.00
    Current price $65.00

    Athena Camg

    Athena

    Athena CaMg is designed to supplement either of our 2-part liquid formulas. Some cultivars and growing conditions may require higher doses of Calci...

    View full details
    Original price $65.00 - Original price $290.00
    Original price
    $65.00 - $290.00
    $65.00 - $290.00
    Current price $65.00
  • General Hydroponics - GH CALIMAGIC CALCIUM + MAGNESIUM 22.7L - Cal Mag Additives - Hydrodionne
    Original price $347.19 - Original price $347.19
    Original price
    $347.19
    $347.19 - $347.19
    Current price $347.19

    Gh Calimagic Calcium + Magnesium 22.7L

    General Hydroponics

    General Hydroponics CALIMAGIC  provides the supplemental elements necessary to optimize plant nutrition and to prevent all-too-common problems.Cal...

    View full details
    Original price $347.19 - Original price $347.19
    Original price
    $347.19
    $347.19 - $347.19
    Current price $347.19
  • OPTIMUM OPTICAL - HydroponicsClub
    OPTIMUM OPTICAL - HydroponicsClub
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $12.95 - $37.49
    $12.95 - $37.49
    Current price $12.95

    Optimum Optical

    Optimum

    OPTIMUM OPTICALOptiCal-Mg is a powerful calcium and magnesium supplement with iron.It is formulated to make calcium and magnesium readily available...

    View full details
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $12.95 - $37.49
    $12.95 - $37.49
    Current price $12.95
  • OPTIMUM OPTICAL 20L - Hydrodionne
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $169.49
    $169.49 - $169.49
    Current price $169.49

    Optimum Optical 20L

    Optimum

    OPTIMUM OPTICAL 20L OptiCal-Mg is a powerful calcium and magnesium supplement with iron. It is formulated to make calcium and magnesium readily a...

    View full details
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $169.49
    $169.49 - $169.49
    Current price $169.49
  • Cyco Dr. Repair - Hydrodionne
    Cyco Dr. Repair - Hydrodionne
    Save up to 23% Save %
    Original price $36.95 - Original price $299.95
    Original price $36.95 - Original price $299.95
    Original price $36.95
    $25.95 - $230.00
    $25.95 - $230.00
    Current price $25.95

    Cyco Dr. Repair

    Cyco

    Cyco Platinum Series Dr. Repair is an additive used throughout the vegetative and flowering periods of plant growth to prevent chlorosis and sooth ...

    View full details
    Original price $36.95 - Original price $299.95
    Original price $36.95 - Original price $299.95
    Original price $36.95
    $25.95 - $230.00
    $25.95 - $230.00
    Current price $25.95
    Save up to 23% Save %
  • Current Culture - Current Culture H2O Cultured Solutions Coco Cal - Cal Mag Additives - Hydrodionne
    Save up to 33% Save %
    Original price $26.95 - Original price $59.95
    Original price $26.95 - Original price $59.95
    Original price $26.95
    $18.95 - $39.95
    $18.95 - $39.95
    Current price $18.95

    Current Culture H2O Cultured Solutions Coco Cal

    Current Culture

    Cultured Solutions Coco Cal is a concentrated blend of readily available Calcium and Magnesium. It is formulated to assist fast-growing plants by p...

    View full details
    Original price $26.95 - Original price $59.95
    Original price $26.95 - Original price $59.95
    Original price $26.95
    $18.95 - $39.95
    $18.95 - $39.95
    Current price $18.95
    Save up to 33% Save %
  • Grotek - GROTEK CAL-MAX - Cal Mag Additives - Hydrodionne
    Grotek - GROTEK CAL-MAX - Cal Mag Additives - Hydrodionne
    Original price $17.95 - Original price $114.95
    Original price
    $17.95 - $114.95
    $17.95 - $114.95
    Current price $17.95

    Grotek Cal-Max

    Grotek

    Cal-Max™ works to charge soilless media and bring plants back from common minor deficiencies associated with nutrient inbalance, rapid growth, or o...

    View full details
    Original price $17.95 - Original price $114.95
    Original price
    $17.95 - $114.95
    $17.95 - $114.95
    Current price $17.95