Optimal PPM for G 13 hydro grow?

C

chris h

Active Member

• Dec 27, 2010

• #1

What would be the most efficient ppm for G 13 plants that are 15-19 inches tall? I am currently running 806 ppm.

 

J

Japanfreak

New Member

• Dec 27, 2010

• #2

Just a little less than would burn them

 

C

chris h

Active Member

• Dec 27, 2010

• #3

thanks for the info??? So just keep upping the nutes until signs of burn, then lower ppm a bit? got it

 

J

Japanfreak

New Member

• Dec 27, 2010

• #4

Exactly! Do it in small steps, once you see a little bit of tip burn back off. People can tell you "safe" ppms but everybody's garden is different the only way to really know is to find out for yourself.

 

C

chris h

Active Member

• Dec 28, 2010

• #5

the plant ppm is 800 and about 20 % of the leaves have very minor tip burn. I am thinking 770 next cycle will be better. Also about 1 inch of just 1 leaf is turning lighter shades of green. Is that a deficiency or due to the nutes?

 

J

Japanfreak

New Member

• Dec 28, 2010

• #6

It's rare to get much more than a slight mg def in hydro if your pH is in line and your strength is right.

 

Hum215

Active Member

• Dec 28, 2010

• #7

Japanfreak said:

It's rare to get much more than a slight mg def in hydro if your pH is in line and your strength is right.

Click to expand...

I completely agree with what Japanfreak has posted in all three of his posts.

 

C

chris h

Active Member

• Dec 28, 2010

• #8

ok a Mg deficiency is easy to fix.My water jumps up from a 5.4ish to around a 6.0 alot. Its been 3 weeks since the pants have been in hyro, Should I flush them?