Me too wounder y this is happing
KCCO’s First Grow In Hydro
- Thread starter KCCO 77
- Start date
Guy Cavallero
Well-Known Member
LMAO.. ..me too !
You guys are awesome!
- Thread starter
- #143
KCCO 77
Well-Known Member
Good morning to all. So last night I cut my air by 50%. I also was going to do a res change but I took my dog for a walk and he hurt his paw/leg playing by the river. So no res change was preformed. However since I cut my air 50% the ph only went down to 5.1from 6.0. This was the first time it did not crash over 1 point. I also noticed my ph probe will not calibrate perfect. It is always 0.1 or0.2 off. Not a big deal but this may b a lot of little problems all combined. I will b picking up a new ph probe tonight after work. I will update tonight. Thx everyone play safe
Scrogdawg
Well-Known Member
Just finished reading and got all caught up with your journal. Looks like you have the rdwc well in hand with the exception of the PH swings. I have the same problem using General Hydroponics Flora series nutrients along with Cal/Mg and Z7.
I've strayed away from doing res changes every week. I only do 2 res changes through veg and 2 through flower. For the first 4-5 days after a res change my ph will drop about the same as you describe but I only let mine drop to 5.6 and the ph it back up to 6.2-6.3. I'll have to do this several times each day. After 4-5 days (ish) my ph will stabilize at a proper level and then only a minor touch up every few days after that. For the next number of weeks between changes it will remain stable.
You may already have this or something similar, but if not, its a handy little chart to have around.
I've strayed away from doing res changes every week. I only do 2 res changes through veg and 2 through flower. For the first 4-5 days after a res change my ph will drop about the same as you describe but I only let mine drop to 5.6 and the ph it back up to 6.2-6.3. I'll have to do this several times each day. After 4-5 days (ish) my ph will stabilize at a proper level and then only a minor touch up every few days after that. For the next number of weeks between changes it will remain stable.
You may already have this or something similar, but if not, its a handy little chart to have around.
Guy Cavallero
Well-Known Member
There he is.....miss you buddy!Just finished reading and got all caught up with your journal. Looks like you have the rdwc well in hand with the exception of the PH swings. I have the same problem using General Hydroponics Flora series nutrients along with Cal/Mg and Z7.
I've strayed away from doing res changes every week. I only do 2 res changes through veg and 2 through flower. For the first 4-5 days after a res change my ph will drop about the same as you describe but I only let mine drop to 5.6 and the ph it back up to 6.2-6.3. I'll have to do this several times each day. After 4-5 days (ish) my ph will stabilize at a proper level and then only a minor touch up every few days after that. For the next number of weeks between changes it will remain stable.
You may already have this or something similar, but if not, its a handy little chart to have around.
- Thread starter
- #146
KCCO 77
Well-Known Member
Welcome glad u got in here
. Hey thanks for stopping by. It is good to know that I am not the only one with this ph drop problem. It is also good to know that it will become stable after time. I will definitely slow down on the res changes. This has been making me wonder what the f$&@ I have been doing over here to have this happening lol. My ph is very stable for 24 after the res change. From there on its all down hill. I have done a res change tonight because I had my nutrients mixing since last night. I will run this one for a few weeks. If I am not mistaken you use RO water. When you top up your res do you add any cal mag at all??Just finished reading and got all caught up with your journal. Looks like you have the rdwc well in hand with the exception of the PH swings. I have the same problem using General Hydroponics Flora series nutrients along with Cal/Mg and Z7.
I've strayed away from doing res changes every week. I only do 2 res changes through veg and 2 through flower. For the first 4-5 days after a res change my ph will drop about the same as you describe but I only let mine drop to 5.6 and the ph it back up to 6.2-6.3. I'll have to do this several times each day. After 4-5 days (ish) my ph will stabilize at a proper level and then only a minor touch up every few days after that. For the next number of weeks between changes it will remain stable.
You may already have this or something similar, but if not, its a handy little chart to have around.
- Thread starter
- #147
KCCO 77
Well-Known Member
- Thread starter
- #148
KCCO 77
Well-Known Member
- Thread starter
- #149
KCCO 77
Well-Known Member
Scrogdawg
Well-Known Member
Yes, I use RO water. I top up the res every morning and replace what they drank from the day before. I mix my top up water with Cal/Mg, Z7, Micro, Gro and Bloom at the same strength as my res water. I'm always feeding and replacing the nutrients. Thats how I get away with only doing 2 res changes.
I think most people top up with straight water and when the ppm's drop they do as res change and add new strength nutrients. In my case I add the same strength nutrient water every day and monitor to see that the ppm's don't change. If they do start to drop then I know I'm not feeding enough and will increase the strength of the top up water.
- Thread starter
- #151
KCCO 77
Well-Known Member
. Excellent thanks for answering that question as well as a few more. By the way nice job on the shut off valve device I have on my RDWC system.( I don’t know what u r calling it lol) but it works great. Thanks for the help it is very much appreciated
- Thread starter
- #152
KCCO 77
Well-Known Member
Good morning to all. Hope everyone is having a great weekend. So the numbers on the tri meter have been great since the res change on Friday until this morning.Here they r last night with out any adjustments
Also bumped the ppm up 900 last night with a 4L top up
- Thread starter
- #153
KCCO 77
Well-Known Member
When I got up this morning they were fucked. The biggest drop I have seen yet. Needless to say the gloves r off and I will try to keep this B$&@“ at bay for the next week to c how it goes. It will b hard with ph swings like this.
- Thread starter
- #154
KCCO 77
Well-Known Member
The bastard woodpecker that got me up this morning has destroyed my tree. These holes r from the last 2 mornings. The som of a bitch is 18 inches tall
Stupid woodpecker what he does not know is I am going skeet shooting in 1 hr and have a shotgun sitting on my table with 2 cases of target loads waiting to b deployed. Lol
- Thread starter
- #155
KCCO 77
Well-Known Member
On a different note these ladies r booming. I may have to put them in flower in their solo buckets if they get much bigger. I think I started the a few week to early lol. Live and learn
- Thread starter
- #156
KCCO 77
Well-Known Member
Good evening to all. So after a 96 hr marathon of ph adjustments this morning I went in to my grow with my ph up and boom my ph was sitting at 5.8. I said to myself no way. Immediately grabbed my ph pen and placed it beside the probe in my res and they were both 5.8. I adjusted the ph to 6.3 and went to work. 12 hrs later here they r. I think she’s stable
. @Scrogdawg 
Thank u. Your prediction of 4 to 5 days for the ph to become stable was bang on. To every one else that helped me I thank you. I have learned a lot about this RDWC since I joined and am still learning everyday. In my case res change weekly is a bad idea. What can I say I am a noob lol
Thank u. Your prediction of 4 to 5 days for the ph to become stable was bang on. To every one else that helped me I thank you. I have learned a lot about this RDWC since I joined and am still learning everyday. In my case res change weekly is a bad idea. What can I say I am a noob lol- Thread starter
- #157
KCCO 77
Well-Known Member
Had some time to swap out veg lights between ph adjustments. I had this running last fall. I had great results but had to pack it up because I needed more heat going into winter. Now it’s warming up in my basement it is back in action
Congrats on controlling the ph, when do you plan on flipping them?
- Thread starter
- #159
KCCO 77
Well-Known Member
Sooner than later I hope. I want to give it a week to c if the plants in flower start to grow a little. They have not done much over the past 2 weeks. If they don’t pick up I will pull them and start fresh. The plants in veg r getting big. I don’t want my finished plants taller than 4 feet. I probably started the plants in veg a few weeks too early. Could get interesting lol
Guy Cavallero
Well-Known Member
NICE......big fan of good news! Youd pull them eh? Whys that.....due to size or their inability to take nutrients?