PH of 5.5-5.7 is fine for leca pebbles.
I set Mine to 5.5 and allow it to drift up to 6.2 before I once again bring PH back down to 5.5.
This process takes about 3 days or so, Strain/plant size/plant numbers dependant.
Mor_
7 posts since joining in August 07,
5 of those posts are in this thread,Begging for Free Seed's.
Shame on You.:spew:
NOTE: My post count is irrelivant, (I'm not begging).
Mor_