beaves IOW
Active Member
Ive just planted 10 NL autos into a soil mix and I need to no can I use oh up or down straight away or do I need to wait a few days or whatever?? Will it harm the seedlings?
can I oh up/down with new just planted seedlings??
- Thread starter beaves IOW
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beaves IOW
Active Member
Nice one mate, they are at 6.1-6.3 I guess that will do?
technical dan
Active Member
yep that sounds ok. And soil frequently has some buffers in it so your pH shouldn't bounce around much