RDWC GH Trio, changing ratio without dumping res.

Just as the title says, I have a big RDWC system and use GH nutes, filling this system takes nearly 48hrs with my slow RO system, I have started them off on the 1-1-1 ratio as on the GH bottle and the plants are picking up nicely. I would soon like to move to the 3-2-1 veg ratio and I'm thinking of just adding back that ratio as the EC drops instead of trying to empty and wasting all those nutes etc! anyone else experienced this?

Thanks!

That's fine for veg but unless you're running some sort of elemental analysis on your res to know how to balance it perfectly, I wouldn't do this for flower.

ok great thanks homebrew, I have just upped to 0.8EC with 3-2-1 so I guess we will see! I guess in some ways it might be better to change the ratios more slowly in this manner! could be a good experiment.

homebrewer said:

That's fine for veg but unless you're running some sort of elemental analysis on your res to know how to balance it perfectly, I wouldn't do this for flower.

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noob12345 said:

I would soon like to move to the 3-2-1 veg ratio

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why 3-2-1? i personally think 3-1-2 is better for veg. Dyna gro foliage pro is one of the best veg nutes IMO 9-3-6

rkymtnman said:

why 3-2-1? i personally think 3-1-2 is better for veg. Dyna gro foliage pro is one of the best veg nutes IMO 9-3-6

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Does that need to be foliar fed?

Axion42 said:

Does that need to be foliar fed?

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the foliage pro? no. i use at somewhere b/t 1 to 5 mL per gallon in hydro

rkymtnman said:

the foliage pro? no. i use at somewhere b/t 1 to 5 mL per gallon in hydro

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I guess the name is just a little confusing. You'd think it was a foliar spray

I use 3-2-1 because that's what GH says to use!