Rockwool Cubes going green... why?

[steeltownstoner]

Thanks everyone! Wow, away for one day and already a myriad of responses. i think i have some black plastic left over from when i wrapped from frame (think they called it panda). This should be thick enough to block out the light, yes?

[IAmKowalski]

Can you see light through it? If yes - then no. If no - then yes. Or something like that :-)

Actually, it's not even critical that it COMPLETELY block light, I think the last time I just used plain old white kitchen garbage bags - double layered 'cause the stuff is pretty thin, but that was enough to keep algae from growing.

[stinkyattic]

Panda is perfect. White side up, black side down. Leave it loose for air flow so you don't get rot.
LOVE that shit. LOVE IT!