Grotek Cal-Max Often the limiting factor in fast growing plants is a lack of useful calcium. In fact, it's one of the problems many coco growers face as there isn't a lot in the media. Grotek Cal-Max provides calcium in a rapidly available form meaning your plants can get back to the job at hand. As such, Cal-Max makes a great conditioner, charging the coco with calcium before use. Along with calcium, Cal-Max also offers nitrogen which is one of the most important elements for plants. It also h
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