[guccimarijuana]

Since marijuana are plants, we often think that they need water. While it is true, overwatering will result to your plants having a droopy posture. In severe cases of overwatering, plants can be killed. When detected earlier, this problem can still be solved. Tip to Avoid: If you are using hydroponic systems in growing cannabis indoors, you can use your finger in order to check the top inch of your growing medium. If you feel that it is dry, then it is already time for watering. Overwatering is a result of watering your plants too frequently.

[Desert Hydro]

i just killed a BIG plant yesterday from over watering. probably would have yielded over 1/2lb when done. shit happens even if you've been doing this a while lol

[Ichabod Crane]

Top dress with NAPA floor dry. It is silica stone or also known as DE. It turns tan when wet and white when dry. Then all you have to do is watch the color. When it turns white all across the top you can water. If it is tan it is still wet.

[noreason]

Overwatering is not a real overwatering. Plants can't be killed from too much water, they can be killed for a lack of oxygen, it's different. No oxygen = anaerobic bacteria will eat roots.

When water has enough DO in it, plants will be happy, even if the medium is always wet. Oxygen keep bacteria down.

So let's ensure you have a good O level, that's one of the most important thing imho.

[ohimaria]

Originally Posted by noreason

Overwatering is not a real overwatering. Plants can't be killed from too much water, they can be killed for a lack of oxygen, it's different. No oxygen = anaerobic bacteria will eat roots.

When water has enough DO in it, plants will be happy, even if the medium is always wet. Oxygen keep bacteria down.

So let's ensure you have a good O level, that's one of the most important thing imho.

But are they killed by the absence of oxygen or the anaerobic bacteria that are formed?

edit: re-reading I understand absence oxygen are bacteria born and eat the root?

[zachrockbadenof]

Originally Posted by guccimarijuana

If you are using hydroponic systems in growing cannabis indoors, you can use your finger in order to check the top inch of your growing medium. If you feel that it is dry, then it is already time for watering. Overwatering is a result of watering your plants too frequently.

we grow some with waterfarms... the drip is on 24/7... never encountered overwatering...

[noreason]

Originally Posted by ohimaria

But are they killed by the absence of oxygen or the anaerobic bacteria that are formed?

edit: re-reading I understand absence oxygen are bacteria born and eat the root?

I guess in a theoretically pathogen free environment, a lack of oxygen will stunt the plant's growth till death, because without oxygen plants can't ''breath'' (cellular respiration).

In the real life, we have bacteria and spores everywhere, even in a hydro nutritive solution, so at 99% a plant's death is caused by bacteria decomposing roots.

Firsts signs can be confused with a lack of nutes (and it actually is because the root zone can't provide enough nutes to the upper part)

But I was pointing a simple thing...I mean...dwc plants have roots always in water, so we know overwatering can't be a problem.

When you point the finger at the oxygen and not directly to the water itself, it could be useful to understand how to build a system, or how to timing it. No matter if oxygen comes from dry/wet cycles or directly from water, more it is, more the roots will be happy.

I know there is nothing new, but for a new grower can be useful to know

[Dog Star]

Yep,a aeration is qey...

its like with liquid manure that is not aerated,if you feed a grass land with this kind of manure and if grass for cattle grows on this field then same this cattle will not eat this grass under any circumstance...

but if you aerate liquid manure and then spread over field and if grass grows same this cattle will feed on this field with a great appetite...

reason is right those that in case of nonaerated liquid manure she have totaly different bacterial flora from aerated liquid manure,like Noreason points...then more pathogen bacteries trive if there is a lack of oxygen...

Aeration is a very important process to keep stuff cleaner and healthy..

[CosmicGiggle]

over-watering at any stage is a guaranteed invitation for fungus gnats which mess with your roots and cause all kinds of hard to diagnose problems.

[Kaskadian]

Just switch to coco! Water everyday (or multiple times) baby!

In all seriousness... just get used to the weight of your pots. I don't grow much in soil anymore but you learn pretty fast how much your pot weighs when they're watered vs when they need to be watered.