Try it just for me !!!
I have like 2 bloody pounds of those things around here somewhere .

Re-Hydrate a bunch in plain PH correct water , and add an airstone/pump in the bottom like DWC . You'll prob. have to chg./flush the crystals when you switch from veg. to bloom because of the plants nute needs changing . But I wouldn't be the least bit suprised if they grow like mad . We have like 5 - 6 ft. tall bamboo growing in polymer crystals in our livingroom .

Peace
Crispi :stoned: