Just looking for some advice

[InTheShed]

You won't know what the plants need until you try the nutes you paid for at the strength the manufacturer recommends. They've done the testing, so that should be your starting point.

I'm not sure what the 3:1 ratio represents though.

 

[Coastal Dharma]

First, it's totally unnecessary to be pH'ing you nutrient solution in Pro-Mix, and measuring the pH of your runoff is insignificant. You'd actually have to do a slurry test to get any meaningful result.

If your runoff ppm is significantly higher than your input, you likely have some nute build up in your Pro-Mix. For a 5 gallon containers, I'd likely run 3 gallons of plain tap water through them followed by a gallon of full strength feed. So you're putting 4 gallons through them and only the last gallon has feed in it. That should get rid of any build up and reset the N-P-K to your intended targets. I like to call that process a Rinse and Reset.

@InTheShed this idea

 

[farside05]

So no Cal-Mag or Sweet(Magnesium 1.50% + Sulphur 2.00%)??? Why not those too? the medi one line-up is sufficient? I've read that cal-mag is the only thing you need to add to it. The sweet is just by choice

If they put the contents (guaranteed analysis) on the label, I'd have a better idea if either is needed or beneficial. I refuse to buy any nutes or supplements that don't divulge that info. Otherwise I think they're trying to play "hide the wienee" to sell me another product....but I digress.

 

[InTheShed]

@InTheShed this idea

Oh gotcha. I still think feeding at 50% + supplements is doing your plants a disservice. The time for supplements is once you see how the actual nutrients work as recommended. Then the next grow you can begin to tweak based on your results the first time through.

 

[Coastal Dharma]

What about a 4:2 ratio instead. still flush but then give a good feed.

Thoughts @InTheShed and @farside05 ?

 

[Reave]

My current supply of ProMix HP has outlived its ability to buffer pH longer term (and I tend to veg longer than most, though not you this round ), so I have needed to lower the pH using a 20-10-20 fertilizer that is more balanced nitrate/ammoniacal. After about two weeks of feeding with that I go back to MC.

Thank you. Why learn the hard way when I can learn through you>!!!!!

 

[InTheShed]

What about a 4:2 ratio instead. still flush but then give a good feed.

Thoughts @InTheShed and @farside05 ?

A true flush would be 10-15 gallons through a 5 gallon pot, so whatever you're comfortable with. And the nutes that follow would be whatever it normally takes to get runoff normally. I'd say 1-2 gallons would be fine. It's not the ratio that matters really.

Thank you. Why learn the hard way when I can learn through you>!!!!!

 

[Momma's Kitchen]

Your in such good hands here! Plants looking good

 

[Coastal Dharma]

A true flush would be 10-15 gallons through a 5 gallon pot, so whatever you're comfortable with. And the nutes that follow would be whatever it normally takes to get runoff normally. I'd say 1-2 gallons would be fine. It's not the ratio that matters really.

Done!

and so we're clear. im not adjusting any ph? water to flush or nutrient mixture?

 

[farside05]

What about a 4:2 ratio instead. still flush but then give a good feed.

Thoughts @InTheShed and @farside05 ?

3 and 1 has worked fine for me. If you are interested in how I came up with that...

I tested ppm of my tap, which is about 150. I ran tap through till I got runoff. Collected some and tested. Ran through another gallon and caught some of the last runoff and tested. Did that again until I got down to about 250 ppm over my tap. Then I fed at regular strength, figuring part of that last gallon with nutes would rinse a bit more. The last bit of that runoff from the water with feed in it was maybe 150 more than my input. At that point I quit.

 

[InTheShed]

Done!

and so we're clear. im not adjusting any ph? water to flush or nutrient mixture?

Correct. And I still advise to go with full strength nutes and no supplements at this point.

 

[farside05]

Correct. And I still advise to go with full strength nutes and no supplements at this point.

I like that too. Problem that comes with feeding a bunch of supplements in place of base nutes is that you miss a lot of the micronutrients that way.

 

[Coastal Dharma]

when you guys say supplements you're referring to the cal-mag and sweet correct?

 

[InTheShed]

Correct!

 

[Coastal Dharma]

I already mixed one nutrient (5 gal) with both of them at their reccomended strength. for the other bucket should i just not add them or do the same if ive already done this?

The day is flying by so i had to get going before we got to where we are now

 

[InTheShed]

Not clear on what "both of them" means. Just mix up a bucket with the full strength nutes per the chart you posted and use that after the flush. If you have already mixed up a bucket with supplements you can save it or dump it, but I don't think you should be using it.

 

[Momma's Kitchen]

@Coastal Dharma great job!

 

[Coastal Dharma]

Not clear on what "both of them" means. Just mix up a bucket with the full strength nutes per the chart you posted and use that after the flush. If you have already mixed up a bucket with supplements you can save it or dump it, but I don't think you should be using it.

i mixed as the chart said.. and then used both of the "supplements" you guys are referring to(Cal-Mag + Sweet)

 

[InTheShed]

Mix a new bucket without them.

 

[Coastal Dharma]

Mix a new bucket without them.

but still use the one I mixed right? i would hate to waste all of that but I don't want to over-feed the plant

@InTheShed im following you're lead man