Grotek Organic Green Line - Black Pearl Size:900ml Fertilise your plants once or

Fertilise your plants once or twice a week as required

As nutrients are absorbed at different rates

Monkey Mag Cal is an important additive if you are growing using coco as the substrate

over-watering etc)

Grotek Organic Green Line - Black Pearl Size:900ml Fertilise your plants once orSOIL BUILDER Black Pearl is more than just high quality charcoal. It is ladened with high grade ingredients like biochar, volcanic rock dust, low molecular weight humates, and kelp. The harmony between ingredients in the soil provide a dramatic boost to crops when added to any nutrient program. Application Rate: 900ml mixes into 36L of growing media.