Roots Organics CalMag Options:Roots Organics CalMag 55 Gallon US5002442 - AHS-DE1000W/Pro-Plus = 2100

US5002442 - AHS-DE1000W/Pro-Plus = 2100 μmol/s

or 105-cell propagation tray

Three year no hassle warranty

PH neutral

Roots Organics CalMag Options:Roots Organics CalMag 55 Gallon US5002442 - AHS-DE1000W/Pro-Plus = 2100Roots Organics CalMag is a pure and all natural blend of calcium, magnesium and sulfur to support plants during fast growth. By creating a product free of added nitrogen, phosphate, and potassium, Roots Organics give you control to supplement as needed without affecting primary fertility input ratios. Use in combination with high quality base fertilizers like Roots Organics Buddha Grow and Buddha Bloom. Free of added nitrogen, phosphate, and potassium