Nutrients Question (switching from GH to Masterblend)

[phd4485]

I've been using GH Flora Series as well. But after finishing these bottles I think Imma switch to Masterblend 4-18-38, because of costs.
So I digged into this site, and found most of them say 'just use it as 2:2:1 ratio(MB:calcium nitrate:epsom salt) for entire growth including flowering.. just diluting it when plants are young.'
What I worry is Won't it be N toxicity?
I'm just a follower of feeding schedule, don't know much about science. but I thought cannabis need different ratio of nutrients for Veg and Flower.
and one more question is Imma also use Hydroguard because I grow in DWC. So, Is it enough without any more nutrients? Only Masterblend 3parts and hydroguard are all I need?
Thank you

 

[coreywebster]

Can't speak for either but I use canna and its the same formula for both veg and flower and I've never had N tox

 

[Roguedawg]

Just cut back on the CaNo3 during flowering if your worried about it or if they are too green.

 

[Drop That Sound]

Why not get the hydroponic formula instead? Is the tomato blend recommended over it for some reason, or were you thinking of using it because of the lower nitrogen content?

 

[Drop That Sound]

Jacks has way more flexibility than the other brands now, btw. With the recent addition (another bag to buy, lol) of a new zero nitrogen formula to their 3-2-1 product line..

Basically, making it more like a true 3 part nutrient lineup, now with separate grow and bloom mixtures. Allowing you to mix up different part A stock concentrate solutions to use during the different growth stages, instead of trying to alter the regular part A & B ratios to achieve the results you are looking for.

Might be worth looking into!

 

[phd4485]

Jacks has way more flexibility than the other brands now, btw. With the recent addition (another bag to buy, lol) of a new zero nitrogen formula to their 3-2-1 product line..

Might be worth looking into!

It's just hard to get hydroponic formula and Jacks 321
I'm in prohibited country so what I can get without customs shit is only MB 3parts..
If I can get GH without any customs declaration, I'd use it for more..

 

[phd4485]

Just cut back on the CaNo3 during flowering if your worried about it or if they are too green.

What if I get calcium deficiency..? I'm a worrier sorry :'(

 

[phd4485]

Can't speak for either but I use canna and its the same formula for both veg and flower and I've never had N tox

That's a relief for me ! Imma try

 

[7CardBud]

When I had MB i ran it a 2-2-2 per gallon.
You won't have issues cutting Calnit with this formula as it is all ready very high calcium.
If anything it is on the low side for N durring veg, but you don't need those super dark green leaves to grow healthy plants.
If you watch this forum, many growers are victim of the ole N-Claw.

 

[amneziaHaze]

i use recommended mix for masterblend.and in flower i raise the mg a little bit when bottom leafs start dying off

 

[cage]

What if I get calcium deficiency..? I'm a worrier sorry :'(

Don't worry, talk to, listen to and look your plants, they will appreciate you.
But yes, if you'd need to you could add some CaSO4 late flowering to give some Ca+S to cut N levels lower.
K:Ca 3:1 ratio is fine, but there's plenty variation on tap waters.