E Doh907
Member
I was wondering if anyone knew if the general hydroponics cocotek was pre rinsed? i dont think it is unless i'm doin somthin wrong. I moistened the brick with r o water and the ppms is over 1000. so i think i should rinse it with more RO water until low enuf ppm? seems to me that it must b full of sea salts? I'm adding some to my soil mix but i dont want bad salts that may throw off ph or just kill plants. please someone with knowledge on this chime in.... I have used the botainicare block n know its pre rinsed but this label on gh doesnt say rinsed