How Crucial is it to change water every week...

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PurpleBuz

Well-Known Member
AeroponicGreen said:
My Plants are loving their environment right now including their water and nutes mixture. They are growing fucking 5'' a day!!!! I dont want to change my water this week for this reason only. I have the perfect mixture :)

If I don't change it what could happen..... What are my risks...
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If you continue topping up with water to maintane ppm and pH but don't throw out your old water and replace you will eventually get a nutrient imbalance, since the plants are sucking out what they need, and leaving what they don't need.

You could do a partial change, and refresh some of the nutes when you are topping off.
 
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MrMeanGreen

Active Member
dimebag87 said:
they were trained with tying and supercropping. that is a 70 percent sativa. its delahaze and they can out grow your space very easily if you leave them to it. those were taken a week or so back. they are lots bigger now!
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Not that I am trying to teach you how to suck eggs, but have you tried a scrog net to train em? Less stress and no physical harm to ya plants. Get them where you want them then take the net down. I just flipped mine 2 weeks ago, only vegged for three weeks and they are beasts with a pretty level canopy, mind you they were superclones (well worth the wait).
 
dimebag87

dimebag87

Well-Known Member
well i did train them a bit with a net. you can just about see it in the pics but it wasnt the right size squares for a proper scrog. i think its designed more for just spreading them out a bit for better light penertration.
 
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MrMeanGreen

Active Member
dimebag87 said:
well i did train them a bit with a net. you can just about see it in the pics but it wasnt the right size squares for a proper scrog. i think its designed more for just spreading them out a bit for better light penertration.
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Go B&Q, they do a roll of rigidish plastic temporary fence stuff. It has 2 inch squares and works a treat to hold ya branches down. Nail the mesh to a wooden frame and your away. I tried the bungie scrog nets but ya plants just push em up. It does save shitloads of time vegging and I won't grass ya to the NSPCC. National Society for Prevention of Cruelty to Cannabis.
 
PetFlora

PetFlora

Well-Known Member
Here's a challenge: Piss in your toilet for 5 days without flushing. I doubt you can make it past 2 full days. We all know plants take up nutrients via their roots, what most people do not realize is plants produce waste, which they get rid of through their roots, especially noteworthy during flower, when pH and ppms go crazy

I start with fresh nutes- let's say late veg so roughly 600ppm. I check ppms each morning and add water only to keep ppms close. By 5-7 days the ppms are down by ~ half. So I dump and repeat with fresh nutes
 
AeroponicGreen

AeroponicGreen

Member
Thanks for all the feedback on these issues! I ended up just changing out my water haha I'll keep doing it every 7 days. The Plants are doing better than ever, So as long as I keep all my levels the same I think they will be just fine!

They did however get a little bit of shock from the new water I think it was because the temp was at 64 when I put it in.

Ihave had my water at 80 before, now thats asking for issues! I think 72 is more than fine! Especially if we change out every week at 72 there shouldn't be any issues in theory.

How long do you guys Veg them for. I know you can kick them into 12-12 anytime but How long should I wait to do so if I want some killer huge plants! Also How long do I veg them for. I guess they will tell me when they are ready after 9-12 weeks right...
 
PetFlora

PetFlora

Well-Known Member
You need to know the genetics. If you growing a strain that outdoors grows to 6ft but you want to grow it indoors, say in a 6ft tent, you better keep veg short. Indicas usually need a longer veg or they will be too small by harvest
 
AeroponicGreen

AeroponicGreen

Member
PetFlora said:
You need to know the genetics. If you growing a strain that outdoors grows to 6ft but you want to grow it indoors, say in a 6ft tent, you better keep veg short. Indicas usually need a longer veg or they will be too small by harvest
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Im growing Jack Herrer right now. What do you think. Where do you find that kind of info out. When I got the seeds they said Flower for about9-12 weeks but nothing about Veg.
 
dux

dux

Well-Known Member
I used to change water every 10-14 days,but during the winter my res temps never go above 62.i thought that might be a lil cool but my plants are going nuts! AND my roots are as white can be...in the summer,I creep up to about 70deg and add a lil h202 to keep roots happy and white..
 
waterdawg

waterdawg

Well-Known Member
I dont wait anymore. I am 12 at the start, my plants were getting to tall and big for the room. I think I lose a bit but gain on time, I think lol.
 
dimebag87

dimebag87

Well-Known Member
waterdawg said:
I dont wait anymore. I am 12 at the start, my plants were getting to tall and big for the room. I think I lose a bit but gain on time, I think lol.
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im going to start doing that from clone. it should shave a month off the cycle if done properly!
 
Ninjabowler

Ninjabowler

Well-Known Member
The middle tote got changed after 60 days of flowering. The buckets every 15-20 days. Nothing was ever phd, ever. Tote had one res change the whole time, just top ups. Its mostly related to how big your rez is and how much your plants drink. I read in a great book that you should change your rez when the plants have consumed the entire thing. Example. If they drink a gallon a day and the rez is 10 gallons then change after 10 days. I waited about the right time for that. My big ones were drinking half gallonish a day so 15/20 days right? I had a huge yield so i dont think anything was wrong. AN sensi A&B base nutes and calmagic and superthrive only, nothing else :):):)the hps shot is about five weeks out. The other one is just the one on the right.
 

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waterdawg

waterdawg

Well-Known Member
The middle tote got changed after 60 days of flowering. The buckets every 15-20 days. Nothing was ever phd, ever. Tote had one res change the whole time, just top ups. Its mostly related to how big your rez is and how much your plants drink. I read in a great book that you should change your rez when the plants have consumed the entire thing. Example. If they drink a gallon a day and the rez is 10 gallons then change after 10 days. I waited about the right time for that. My big ones were drinking half gallonish a day so 15/20 days right? I had a huge yield so i dont think anything was wrong. AN sensi A&B base nutes and calmagic and superthrive only, nothing else
the hps shot is about five weeks out. The other one is just the one on the right.
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I think that is kinda like the lucas formula right? Once you have added back the total amount you start again. I have 6 in a tray now that drink 50 litres every 3-4 days so the total res every 7-8 days! That is an older grow that you are showing right? Are you still doing the same water change cycle?
 
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