Cocos Slab represents the ideal substrate for the breeder, who prefers to a natural and highly pure product. It is, of course, and fully buffered with a stable pH-value, in contrast to other hydrological substrates. Cocos Slab contains Trichoderma for protection against malicious fungi. It also has a high water holding capacity so you need less watering. Cocos Slab meets stringent quality requirements and has the RHP