Grotek Black Pearl

Grotek Black Pearl

Directions for use: Black Pearl is best applied by mixing it into soil or soilless media rather than as a top dress . this product is not water soluble and should not be used in re-circulating hydroponic systems.

Reconditioning Medium: Apply 4 g (1 tsp) per 4l (1 Gal) of media and mix well. on a larger scale apply 28 g (7 tsp) per 28 l (1cuft)  . this product is intended for a single application prior to planting. Charging new medium: Apply 4 g (1 tsp) per 4 l (1 gal) of media and mix well. on a larger scale apply 28 g (7 tsp) per 28 L( 1cuft). this product is intended for a single application prior to planting.

250g $15.00

1.5kg $75.00