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rube32

Rockwool throwing off my pH

rube32
15 years ago

I didn't know that I needed to neutralize rockwool by soaking them in a pH neutral of 5.5 solution before using them. How do I bring down the pH levels after I have already transferred the seedlings into my DW system? I have already had to bring down the pH in my res once using lemon juice and it keeps creeping back up over 6.2 which is recommended by Canna? Do I have to start all over again? I am using Canna Aqua Veg A+B plus Rhizotonic.

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