Jacks hydro with no epsom salts?

[Zen Medz]

I've been running Jack's hydro 3/2 with some seaweed and humics and my plants seem happy. I was doing a side by side test with half my plants using my normal organic compost teas and was impressed with the growth and size difference. I'm not adding any epsom salts to my mix and was wondering if anyone is running Jack's hydro with any Mg deficiencies?

I looked over the Mg numbers in the Jacks and it looks like it should be enough. My calc is showing about 50 ppm's of Mg with 3 g's of Jacks, for a comparison Botanicare's CNS Bloom at 23 ml (late bloom recommendation) has only about 30 ppm of Mg. I may add some every other rez change to be safe. Cheers.

 

[highdensity]

No need for extra mg in my 2.5 yrs of using it. I mix my rez with 80% RO and 20% tap. All add backs are RO water and I readjust nute levels if needed. I run jacks a little hotter than you do at 2.0 ec.
Some strains may require extra, but I haven't needed it.
A commercial greenhouse grower told me they foliar spray cal mag if they see a deficiency. Works a lot faster that way.

 

[Zen Medz]

HD, good tip on the foliar cal mag feeding for quicker results. This is my first grow running chemical nutrients and the Jacks with Calnit is awesome. I feel like I'm cutting corners cause I'm used to doing a lot more with my organic grows. I've got a couple Chem Valley Kushes and GSC's that are really vigorous and stretching but they seem pretty happy.