OptimaXX

OptimaXX is a highly versatile rockwool slab designed for cannabis growers who want a balanced mix of moisture retention, rapid rooting, and responsive dry-backs. It’s just wet enough to support early-stage growth, but airy enough for precise steering during flower — making it ideal for full-cycle grows in indoor and greenhouse setups. Its optimized fiber density encourages even root spread and nutrient uptake while avoiding oversaturation — with a structure that supports both veg and flower for increased control as your plants transition throughout each stage of their lifecycle. Great for medium to long cycles, OptimaXX is a stable slab that doesn’t sacrifice responsiveness. For explosive early-life plant performance, pair OptimaXX with RootmaXX to get your crop off to a super strong start. If you’re looking for a slab with more water-holding capacity for longer dry-backs or heavier plants, MaXXima will deliver exactly what you need.