Jacks 321 ran out of epsoom

As the title says, I ran out of magnesium sulphate, got the bags mixed up. I've been feeding ec 1.5/1.6. Just started week 7 of flower. Am I safe to just use 3/2/0 until I pick some salts up tomorrow? Should I drop the ec to 1.2? I have a little cal mag there, could I use this? They'll be watered twice/thrice before I can get the salts, in rockwool. Just a bit concerned as they were showing some rust spots at the serated edges, I put it down to the lights being too close but could be a little Mg def?

Coco grower just my 2c. I think you are ok.

Rust....could be cal / mag.
I would add some calmag.
Then make sure then ec is at least 1.4. No big swings in ec.

Cool thanks. The calmag has nitrogen in it, should I replace the calnit with calmag? Gah gets confusing, trying to use hydrobuddy but too baked lol

321 is fairly low in N.
What brand of "calmag" do have?

Some ppm breakdowns, including epsom. I stay away from hydrobuddy. Lol

shogun: calcium (3.2%), magnesium (1.2%) and nitrogen (2.6%) source

Use at max strength?

That calmag is weak on the cal and mag compared to N.
Hesitant to make any recommendation.

Can you get yout hands on some drug store epsom salts?

Yeah think ill get some first thing cheers!

I would think rust spots on the edges of the leaves this late in flowering would be nute burn myself.

If old, lower fan leaves aren't starting to get yellow especially between the veins then you don't have low Mg. Even if some is happening it has to be wiping out all the old leaves before it will hurt the buds any. I wouldn't be feeding anything but water at this point myself. The tops will steal all the mobile nutes they need from the old growth.

The sulfur in the Epsom salts is good for resin production so adding some may help that.

TintEastwood said:

Some ppm breakdowns, including epsom. I stay away from hydrobuddy. Lol
View attachment 4349975

Click to expand...

Those numbers are the ppm at the stated dose rates correct?

Couldn't seem to save those using Save Image As and have it show up in Paint Shop Pro but tried Copy Image then started a new file in PSP and pasted it in then saved as a .jpg and that worked.

Good info!

OldMedUser said:

Those numbers are the ppm at the stated dose rates correct?

Couldn't seem to save those using Save Image As and have it show up in Paint Shop Pro but tried Copy Image then started a new file in PSP and pasted it in then saved as a .jpg and that worked. View attachment 4350051

Good info!

Click to expand...

Yes. Liquid or weight measure. All are for 1 gallon.

That other chart shows how Jacks formulas are high in sulfer ppm, which is good.

If in Windows. Right-click on an image for save option may work.

TintEastwood said:

If in Windows. Right-click on an image for save option may work

Click to expand...

Windows XP with an out of date TOR browser. Sometimes images especially .png won't show up when I save from here. Glad I found a workaround.

TintEastwood said:

Some ppm breakdowns, including epsom. I stay away from hydrobuddy. Lol
View attachment 4349975

Click to expand...

Whats wrong with Hydrobuddy? I have been using it for years and it seems to be working ok?

Porky101 said:

Whats wrong with Hydrobuddy? I have been using it for years and it seems to be working ok?

Click to expand...

I've just never had to use it.