Problems in Hydro - Calcium Def?

[Drekthar]

I would like a few opinions on the issue showing on the leaves in the attached photos. I am growing in hydro. I am recalibrating my Ph meter and will check where the Ph is at. It looks like calcium deficiency, i am using flora trio and calimag all at 50% of recommended dosage.

looking forward to seeing a few others opinions on the matter

 

[RagWeedDWC]

I had the same problem, was feeding my nutrients at 50% including CalMag. Use CalMag at full strength if you are using RO water, it made a world of difference in my grow.

 

[gbauto]

I'd suggest upping the ec of your feed.
When I used GH Flora, I ran it at almost the suggested rate.
Need some more info on ph and ec of your grow,

 

[UndergroundFarmer]

I learned the hard way to calibrate the stupid pen monthly. Be sure to keep an old fashioned green-yellow-orange test kit around for backup.