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SUPERthrive® World Champion activator
Size: Unrolled 25 in x 12 in x 5 in
medium and coarse particles
Quality UL components for quiet operation
VEG+BLOOM HD BASE 100LB Inner Diameter (ID) Grow Trays SUPERthrive® World Champion activatorHD H(ard)D(irty) is built with a combination of components from our TAP HARD and DIRTY formulas. Best for rock wool, grow stones, and other inert hydroponic media. While the HD formula has the potential to yield the best quality results, it can be more difficult to use than the other formulas. PH tends to swing and it must be kept in range in the reservoir and within the root zone. Smaller container size is ideal for keeping root zone pH in range