Nute burn? Mg? K? - Getting really bad.

[Zandor]

Thanks for the advice guys. I'll stop spraying the leaves. I think I found the problem. It could have be K and Mg for all I know. I think the PH was locking up the nutes. Once I dropped it down the problem stop progressing. The res PH was 5.9-6.0 but when I check the run off PH it was a bit higher. Once I flushed the rockwool with PH around 5.6-5.7 and made sure the run off was the same the plant perked right up.

Thanks again.

You may need to try for 5.2 to 5.5 for about a week. Cover the rockwool before you get alga. Remember Rockwool holds water around the root ball and you can root rot a plant quick so keep an eye out and smell often.