I'm merging that thread with this one since they are on the same basic set of problems.

Lose the ST entirely. That higher dosage can be applied ONCE and once only- you can't keep at it. You are causing more problems than you are solving with that stuff.

You MUST run calmag on RO water. There's even a sticky about it in hydro because calmag and ro water are major contributors to my carpal tunnel syndrome... :wtf:

It looks like a multi-nute lockout from some combination of N overdose, soil pH, or whatever, and soil pH drops off fast when you aren't running your calmag in your RO water...
stinkyattic Reviewed by stinkyattic on . Neon green with Rust spots Pls help I think that I have a phosphate df, I got the rooted clones on 10-27 they were in rockwool, cut out and transplanted into square ½ gallon pots, I didn�??t feed enough I gave 1 ml of bio grow per gallon with 1 ml superthrive per gallon. Watered till I saw run off, also mixed neem oil with half strength dutchmasters pen, and Dutchmaster Grow and lightly sprayed before I took them in the garden. I then waited until 10-30 and watered until I saw run off with only ½ strength superthrive per Rating: 5