and lights can cause similar symptoms.
Jacks has all the cal mag you need even though she has a spot or two of calmag symptoms. What cause the issue is what you need to figure out.
Water level too high will cause your plant to exhibit various symptoms. If they’re not getting enough air, your plant will start to die and appear wilted along with discolored leaves.
When water temps get too high, you stand a chance of root rot. Light penetrating the buckets will also affect the roots.
If any of the conditions exist, your pH will fluctuate which can lead to lockout.
If that’s the case, and was corrected, the damage has already been done. Sometimes they may recover but more often then not, you’re left with a damaged plant in some form that may take time to appear and eventually get worse.
Do you have a picture of your setup?
How do you have your buckets linked together?
Have you calibrated your pH meter lately?
Do you run Jacks full strength?
How much does your water temp fluctuate?
Do you have a water chiller?
How long have you been using hydroguard?
What size pipe do you have linking them together?
What size water pump do you have?
How many gal of water is in your system?
Do you have a picture of the whole plant?
Just some things to think about…
Good luck and keep’em growing.