use the big chunks like 1 inch. they allow best oxygen for roots plus since they are jagged they lock together and provide support for heavy plants. grodan rockwool is good if you use the bigger cubes but it limits you on the type of hydroponic setup you can use.
AquaponicHerb Reviewed by AquaponicHerb on . what kind of media hey so what do you guys all swear buy... i have been checkin out those new sure to grow cubes. they look cool and less of a mess. but what do you guys think. im building a new set up i had a rubber maid dripper. but am going to make a 6 inch pvc mister set up for 15 plants. it will be the cups only for saport and im wondering if these foam blocks will give enofe saport to keep my babies from tipping over. Rating: 5