just bought a botanicare cocogro brick?

when I fluff it can I just store the excess I don't need in a bag or something its a 5kg brick so it says expands to 65 to 70 liters

it might be a good idea to make sure its dry before you bag it up i used to buy the coco bricks but now i buy it in the bags ready to go & mix it with perlite its a lot less work i then leave what i dont use in the bag it came in

yes expand it in a 70 liter tub using ph of 5.8 and the cal mag at 200 ppms GL peace