yea i just started another grow with some old air soft and i think they might have been to dirty. the leaves are starting to get rust colored spots on them.aquarium rocks should be okay for a growing medium in a dwc/aero setup replacing expanded clay right?
I bet the metals change the ph, I have never heard of people using those b4, do you know of people who have succeeded besides u, one time?yea i just started another grow with some old air soft and i think they might have been to dirty. the leaves are starting to get rust colored spots on them.
How many were male?i used airsoft beebees and they grew great, they where male but they grew great