[Gr33nSanta]

use poly flagging tape for plant ties (with bamboo sticks works great). no scissors needed, tear where you need.

https://www.google.ca/search?biw=144....0.Ld9HZcf66qs

typically found in logging type of stores. The thinnest stuff you can find will hold the biggest bud you can grow.

[Jellyfish]

Agreeing with Gr33nSanta, LED's are awesome.

[Andyo]

The government made full strength illegal for public
Excellent colour strength.

1g phenolphtalein
2g methyl red
3g methyl orange
4g bromomethyl blue
5g thymol blue

measuring weights needs be very accurate 0.01

Disolve in 2.5 litres of ethanol then add 2.5 litres of distilled water
It doesnt fully disolve in the ethanol but will especially if you heat the water to 50 c before adding ,and shake then let it cool.A

[Snook]

Originally Posted by Andyo

The government made full strength illegal for public
Excellent colour strength.

1g phenolphtalein
2g methyl red
3g methyl orange
4g bromomethyl blue
5g thymol blue

measuring weights needs be very accurate 0.01

Disolve in 2.5 litres of ethanol then add 2.5 litres of distilled water
It doesnt fully disolve in the ethanol but will especially if you heat the water to 50 c before adding ,and shake then let it cool.A

no habbla.:. what?

[MrBungle]

He gave us a recipe for pH indicator drops.. Now thats getting down to it Andyo!!

[Andyo]

my method of preventing too high pH levels in the hydroton medium. First, check if the irrigation water pH is set at the correct level by checking the pH setting, and monitor
the quantities of acids actually being added to the mixing tank.
Not ideal if you have even small amounts of bicarbonates in your raw water

My method is to control the pH by increasing the ammonium level. This is done by swapping calcium nitrate for ammonium nitrate
increased amounts of ammonium to a nutrient solution when the pH in the root zone is rising,
which usually occurs as a result of high vegetative crop growth rates.
The roots will take up the NH4+ions and
release acidifying protons (H+) into the root zone. This acidification of the root zone will create a beneficial environment for the uptake of nutrients by the plant.
In hydroponic growing systems, the proportion of ammonium cations should be limited to 5-15% of the
total nitrogen in the solution. A maximum of 1-1.5 mmol/l (14-21 ppm N) NH4+ in the nutrient solution is
acceptable; if higher, the pH will drop too much. The exact quantity, however, can vary from 0-1.5 mmol/l
(0-21 ppm N) depending on the actual growing conditions and the sensitivity of the crop to a low pH.
When the pH is too low, reduce the ammonium input to 0-0.5 mmol/l (0 - 7 ppm N). When the pH is too
high, increase NH4+
to a maximum of 1.5 mmol/l (21 ppm N). The pH should be checked daily.
Once you know your crop well,keeping records you will know the ballance of calcium nitrate to ammonium nitrate, especially using rain water or RO water.A

[Gr33nSanta]

holy shit scientist in the garden!! that is why I grow organically with water only, I can not understand this gibberish.

[Andyo]

Originally Posted by Andyo

my method of preventing too high pH levels in the hydroton medium. First, check if the irrigation water pH is set at the correct level by checking the pH setting, and monitor
the quantities of acids actually being added to the mixing tank.
Not ideal if you have even small amounts of bicarbonates in your raw water

My method is to control the pH by increasing the ammonium level. This is done by swapping calcium nitrate for ammonium nitrate
increased amounts of ammonium to a nutrient solution when the pH in the root zone is rising,
which usually occurs as a result of high vegetative crop growth rates.
The roots will take up the NH4+ions and
release acidifying protons (H+) into the root zone. This acidification of the root zone will create a beneficial environment for the uptake of nutrients by the plant.
In hydroponic growing systems, the proportion of ammonium cations should be limited to 5-15% of the
total nitrogen in the solution. A maximum of 1-1.5 mmol/l (14-21 ppm N) NH4+ in the nutrient solution is
acceptable; if higher, the pH will drop too much. The exact quantity, however, can vary from 0-1.5 mmol/l
(0-21 ppm N) depending on the actual growing conditions and the sensitivity of the crop to a low pH.
When the pH is too low, reduce the ammonium input to 0-0.5 mmol/l (0 - 7 ppm N). When the pH is too
high, increase NH4+
to a maximum of 1.5 mmol/l (21 ppm N). The pH should be checked daily.
Once you know your crop well,keeping records you will know the ballance of calcium nitrate to ammonium nitrate, especially using rain water or RO water.A

The ph indicator solution formula i posted previously is what i use for 1hr and 2 hr last drips ph in pot drift drips test pot tilted at 45
degs
It shows the ph swing.
I can fine tune it to be 5.8 to 6.2 over 2 hours
whether 2 or 3 floods in veg 18/6 hrs or 1 or 2 floods in flower 12/12 hrs.A

[moonymonkey]

if you use empty spring water jugs wen ther empty to fill with tap water the ph went from 7.4 to 7.6-7.8 watch out for that,wat mine did. a heads up.tap water is 7.4 coming out faucet.peace moonlanding/

[MrBungle]

Good one moony, it's a good idea to get your water tested for alkalinity and mineral content from time to time... So you can adjust your nutrient profile accordingly