Optimal rH level ?

[Dizzy88]

10-4 . i am going to get one more timer... will set the 3rd fan on to cycle on/off with the light cycle...have one kicking around just didn't want to use it thinking it'd be overkill lol...appreciate all of the help as always AQUA. im curious to see what my reading for LST will be after lights off for 1-2 hours.

leaf surface temp around 82-83 now with only hour of lights off and water bottles put in rez... so i expect them to drop to 77-78 by next few hours like they did last night.... rH is still 50 and temp is 81 so i'm still riding way high on the VPD but thank God that doesn't matter as much when lights are off...

ppm still hovering 420-430 on each plant but pH spiked from 5.8 to 6.3 in each rez as well- i think thats because i fed them the Earth alive root inoculant last night... so going to try and bring that back down to 5.8.

 

[Aqua Man]

leaf surface temp around 82-83 now with only hour of lights off and water bottles put in rez... so i expect them to drop to 77-78 by next few hours like they did last night.... rH is still 50 and temp is 81 so i'm still riding way high on the VPD but thank God that doesn't matter as much when lights are off...

ppm still hovering 420-430 on each plant but pH spiked from 5.8 to 6.3 in each rez as well- i think thats because i fed them the Earth alive root inoculant last night... so going to try and bring that back down to 5.8.

You may need to add a buffer to the water to keep the ph more stable. In your case potassium silicate would be a great option because the silica will help with heat stress and provide a buffer slowing the ph drift.

 

[Dizzy88]

You may need to add a buffer to the water to keep the ph more stable. In your case potassium silicate would be a great option because the silica will help with heat stress and provide a buffer slowing the ph drift.

funny you mention that because i literally was reading up on preventive measures for heat/drought stress and looking up DYNAGROW PRO-TEKT was a silicate they recommended.... (we got a big heat wave coming too f***) lol... not sure if your familiar with southern ontario, but i am judging by your forum pic that your a fellow maple leafer-- but southern ontario gets dry as f*** and hot as hell in summer.... last 2 summers wasn't as bad when we grew outdoors (mind you we didn't give a EFF about quality, etc was just for fun) but indoors is whole new ball game for me and i really am investing time and energy to perfect this craft (hobby).

got any recommendations where i can source affordable potassium silicate? do i feed that for entire grow?

 

[Aqua Man]

funny you mention that because i literally was reading up on preventive measures for heat/drought stress and looking up DYNAGROW PRO-TEKT was a silicate they recommended.... (we got a big heat wave coming too f***) lol... not sure if your familiar with southern ontario, but i am judging by your forum pic that your a fellow maple leafer-- but southern ontario gets dry as f*** and hot as hell in summer.... last 2 summers wasn't as bad when we grew outdoors (mind you we didn't give a EFF about quality, etc was just for fun) but indoors is whole new ball game for me and i really am investing time and energy to perfect this craft (hobby).

got any recommendations where i can source affordable potassium silicate? do i feed that for entire grow?

Yup and my wife is from Toronto.

 

[Dizzy88]

Yup and my wife is from Toronto.

am in essex area... about 3.5 hours south of TO... how much potassium silicate you recommend in each 5 gallon bucket?

 

[Aqua Man]

am in essex area... about 3.5 hours south of TO... how much potassium silicate you recommend in each 5 gallon bucket?

Haven't used it in my hydro so I can't say. In my soil i use vermiculite so don't need it. What do the directions say? You will definitely use more acid when using it.

Always add silica first then ph down to about 6.2 before adding nutrients then after adding nutrients ph down to 5.6. If you are adding it to an existing res make sure you mix it and ph it down before adding to the res. It brings the ph up very high and can cause some nutrients to precipitate out of a solution because of this.

 

[Dizzy88]

Haven't used it in my hydro so I can't say. In my soil i use vermiculite so don't need it. What do the directions say? You will definitely use more acid when using it.

Always add silica first then ph down to about 6.2 before adding nutrients then after adding nutrients ph down to 5.6. If you are adding it to an existing res make sure you mix it and ph it down before adding to the res. It brings the ph up very high and can cause some nutrients to precipitate out of a solution because of this.

Will order some up this week I think it’s a good catch too for combatting some of the heat stress I’m putting these babies thru too. Thx for the tips

side question ,do u normally carry 400-450 ppm until flowering stage ?

 

[Aqua Man]

Will order some up this week I think it’s a good catch too for combatting some of the heat stress I’m putting these babies thru too. Thx for the tips

side question ,do u normally carry 400-450 ppm until flowering stage ?

Usually hitting 500-600 from late veg to late flower

 

[Dizzy88]

Usually hitting 500-600 from late veg to late flower

@Aqua Man One final question for the day if u don’t mind good sir I been sounding off all day asking ??s sorry lol hard to find help...

everywhere I read says veg is 4-5 weeks on bubble gum strain indoors But I’m on day 24 of bigger plant and day 16 of 2nd plant and it doesn’t look like 4-5 weeks is anywhere near enough lol ... is veg time diff from seed ?? I’m assuming they mean 4 weeks from clone On most sites

I’m pretty sure big plant is almost ready for topping will post this next week or two sometime on here looking for advice on that. Finally cleaned the milk stains majority of it too

 

[Aqua Man]

@Aqua Man One final question for the day if u don’t mind good sir I been sounding off all day asking ??s sorry lol hard to find help...

everywhere I read says veg is 4-5 weeks on bubble gum strain indoors But I’m on day 24 of bigger plant and day 16 of 2nd plant and it doesn’t look like 4-5 weeks is anywhere near enough lol ... is veg time diff from seed ?? I’m assuming they mean 4 weeks from clone On most sites

I’m pretty sure big plant is almost ready for topping will post this next week or two sometime on here looking for advice on that. Finally cleaned the milk stains majority of it tooView attachment 993380View attachment 993381View attachment 993382

Go by the plant not veg times. They are not grow specific.

 

[Aqua Man]

In my hydro I could only veg 3 weeks... Anymore and the plants were just way to big. If you run into a couple road block you may end up 6weeks but just wait for them to get to about the size that if you double the width and height you will fill the space

 

[Dizzy88]

damn - 3 weeks veg... what do you average height-wise after that??? thats insane, i seen the grow pics though they look star studded!!

im trying to find this potassium silicate now.... all canada sites are out of stock damnit

 

[Aqua Man]

damn - 3 weeks veg... what do you average height-wise after that??? thats insane, i seen the grow pics though they look star studded!!

im trying to find this potassium silicate now.... all canada sites are out of stock damnit

this was my last hydro grow. Dec 1 to Jan 2. I had to through this out it got to big. The journal is on here.

 

[Dizzy88]

In my hydro I could only veg 3 weeks... Anymore and the plants were just way to big. If you run into a couple road block you may end up 6weeks but just wait for them to get to about the size that if you double the width and height you will fill the space

seen this pic on one of your posts.. ideally this is what i want to achieve with my RDWC system in the 4x4 tent in the garage... i'm guessing REZ is outside?? it would make maintenance and everything a WHOLE LOT easier lol

 

[Aqua Man]

View attachment 993411

seen this pic on one of your posts.. ideally this is what i want to achieve with my RDWC system in the 4x4 tent in the garage... i'm guessing REZ is outside?? it would make maintenance and everything a WHOLE LOT easier lol

Yes Rez was outside.

 

[Dizzy88]

Yes Rez was outside.

Do you have any tutorial links on how to set a similar system like that up by any chance ?

 

[Aqua Man]

Do you have any tutorial links on how to set a similar system like that up by any chance ?

PM ya.