Canna terra professional or seed mix? Professional should have enough to get an auto through most or all of veg while seed mix probably wont. Both are similar in terms of watering though, I would say that watering 2 times per week is enough unless due to the temperatures the water evaporates sooner. With a net is more triky but maybe you can lift the pot to know when it needs watering, with that pot size it will be easy to tell when it has a lot of water or just a little, the difference in weight is very noticeable. If you cant lift it maybe 3 times per week. Maybe thats how youre watering right now, in that case keep it going.

I would suggest also keeping that door always open to ensure they get fresh air or the same air will be circulating all the time in the lung room and indoors. I guess you already do to try to lower temperatures but just in case, I had a friend who steamed his plants because he always left his lung room door closed despite the fact that I told him otherwise haha.

Also if you buy an intraction fan it should have less airflow than the extraction fan to keep a slight negative pressure inside the room, to make sure all the air inside leaves.

What water do you use?

If you want or need more airflow then you can buy a higher airflow one and put the one you have as extraction in the intraction slot on the bottom. The intraction fan ensures that the airflow is steady and goes from the bottom to the top, helping hot air that already tends to go up to get evacuated sooner and keeping more steady temperatures, because sometimes the temperature of the top canopy can by higher thant the rest of the grow. I have a double thermohygrometer, it has a sensor inside and then a probe with a cable that I keep on the top canopy because many times its a few ºC higher in the top canopy than in the tent.

Eledin said:

Canna terra professional or seed mix? Professional should have enough to get an auto through most or all of veg while seed mix probably wont. Both are similar in terms of watering though, I would say that watering 2 times per week is enough unless due to the temperatures the water evaporates sooner. With a net is more triky but maybe you can lift the pot to know when it needs watering, with that pot size it will be easy to tell when it has a lot of water or just a little, the difference in weight is very noticeable. If you cant lift it maybe 3 times per week. Maybe thats how youre watering right now, in that case keep it going.

I would suggest also keeping that door always open to ensure they get fresh air or the same air will be circulating all the time in the lung room and indoors. I guess you already do to try to lower temperatures but just in case, I had a friend who steamed his plants because he always left his lung room door closed despite the fact that I told him otherwise haha.

Also if you buy an intraction fan it should have less airflow than the extraction fan to keep a slight negative pressure inside the room, to make sure all the air inside leaves.

What water do you use?

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Yes, I leave it open all the time. I used to get around 23c to 26c with lights on and 18c to 20c off, but now weather is kicking in Im from Portugal, it's hot.
I might buy a second fan to blow air in, but I'm kind limited in space, glad you mentioned that it need to be inferior to the extractor I had no idea.

Do you think that tent is too small for 2plants

I use canna terra professional plus, and tap water, and she's in a 2g fabric pot.

Eledin said:

If youre gonna buy a PH meter invest in a good one or you will need to be buying calibration packs every month and they still wont be super accurate. A cheaper alternative, the one I use, is a ph test kit. General hydroponics have a very cheap one and its very accurate.
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1st) I do use the GH pH drops so this post is not against the drops.

It's faulty information to say "buy a good pH meter (or you will be calibrating every month.) All good pH meters have the ability to be calibrated and calibration monthly would be part of a good maintenance routine, assuring accuracy of the device. Calibrating frequently should be seen as part a good quality control program. At least you'd know your readings are accurate.

2nd) The plan't color is off and showing signs of poor watering practices. I would not expect a new grower to pick up on this immediately but I would expect a grower with some experience to pick up on it right away. I've not seen anyone mention that.

We'll start with what "over-watering" isn't.

Over-watering isn't providing the plant with too much water in single watering. You can actually push gallons of water through a grow media on watering day and "not over-water." All the extra water does is produce run-off. There's reasons not to do this, but its not because of over-watering.

Over-watering actually is watering too frequently and not allowing sufficient time for the soil to dry back. I see this in the OP's plant because of leaf color ( the green is dull almost a gray hue to it due to roots not getting enough oxygen.) The fan leaves that show damage show signs of sitting with wet roots. Wet soil is acidic in nature and doesn't allow proper nutrient uptake. These 2 things explain the plant's general shade of green not being "lush" like a truly healthy plant would and the leaf damage patterns showing on the fan leaves. The plant leaves also look swollen and they arch across the leaf with the tips pointing to the soil ... The plant is saying "help I am drowning."

This isn't saying that the other's suggestions are out to lunch ... They are viable and will help improve the grow. However, nothing will help improve the grow more than getting the watering/dry-back routine down. It's the one thing that will improve everything and actually make the biggest difference in this grow.

Water thoroughly when you do but don't water as frequently. Every 2 days is way too much for most plants. Every 3 days is still too frequent for many.

Dots said:

The strain is cookie gelato, I barely feed her in veg stage, I bought nutrient for the bloom only not knowing she would need more.
I used to water everyday and feeding every other day instead of water, then yellow leafs started to appear and I let her 2days without watering but it got worst, then it stopped when I increased the amount 1.7l instead of 1l
I'm using sensi bloom part a+b i put about 8ml in 2l, I alternate with big Budd another 8ml per 2l

I think it stopeed growing tall, last time I had to adjust lights was like a week ago
Thanks

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This is a prime example of improper watering techniques. It's not the amount of nutrients. Its the frequency of watering. In this case, the OP was both over-watering (watering too frequently) and under-watering (not providing enough water per watering) at the same time earlier in the grow. Most plants in a decent potting soil mix and proper pot size will go 3-5 days between watering.

Do not try to "schedule" watering day. Let your plant set that schedule. If necessary to get the wet/dry cycle down ... purchase one of these:



P.S. The plant will finish. It will provide for a decent harvest of decent buds. The tips I have given will help this grow some ... but its real power will be seen when the suggestions are applied appropriately in the next grow from the very beginning.

"Watering every day no doubt helped with the yellowing,"
It was mentioned and I told him how many times he should be watering with that substrate and those temps.

You dont need a moisture reader... lift the pot like I said.

"It's faulty information to say "buy a good pH meter (or you will be calibrating every month.) All good pH meters have the ability to be calibrated and calibration monthly would be part of a good maintenance routine, assuring accuracy of the device. Calibrating frequently should be seen as part a good quality control program. At least you'd know your readings are accurate."
That I agree with, ideally you wanna calibrate every ph pen at least once per month but with the cheap ones you better do because theyre gonna be shit otherwise while the decent ones still give somewhat accurate readings unless you use it a ton.

Tell the truth, you didnt read half of what Ive written plus he is overfeeding.

Dots said:

Yes, I leave it open all the time. I used to get around 23c to 26c with lights on and 18c to 20c off, but now weather is kicking in Im from Portugal, it's hot.
I might buy a second fan to blow air in, but I'm kind limited in space, glad you mentioned that it need to be inferior to the extractor I had no idea.

Do you think that tent is too small for 2plants

I use canna terra professional plus, and tap water, and she's in a 2g fabric pot.

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You can fit 2 of those pots in there yes, specially with a 300W light. We are neighboors! Im from Spain haha I knew you were from Europe because canna terra is not really used much in the US but I think its a great soil if you add some ammendments.

Eledin said:

Tell the truth, you didnt read half of what Ive written plus he is overfeeding.

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I cant blame you, I wrote a lot. But I know, and Ive done it too Im not judging you but we touched on watering practices.

One thing I didnt mention now that you refreshed my mind, the dosages are for 1 week. If you see 4ml/L max dosage that means weekly. I water 2-3 times per week so I only feed once. Im currently using canna terra too but I buy biobizz, cover crop or top crop sometimes.

Eledin said:

You dont need a moisture reader... lift the pot like I said.

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Correct, you don't "need" a moisture meter to grow good weed, but you do need a consistent approach.

I still use a moisture reader even after all these years. Why? I want to verify. Lifting a pot and saying "yes it's light isn't very precise." You can get away with it if you have experience, but its hard to judge if you don't. You also can't teach wet pot/dry pot unless you are there physically to judge this yourself. It's just too subjective and prone to mistakes for someone new to growing. (Oh it feels dry enough, I think I will water today because I'm too busy tomorrow. WRONG APPROACH!) The meter takes the guess out of it and this makes it best for those just starting out.

Eledin said:

Tell the truth, you didnt read half of what Ive written plus he is overfeeding.

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Before anything else, fix the watering issue. Once that is fixed, we can zero in on other problems. Everything this particular plant is dealing with leads back to improper watering. It really is that simple ... and watering is one of the easiest problems to fix.

@Eledin, I'll apologize in advance if this offends you. It's not meant to but its the truth. I never read everything that gets written. Does that mean I miss things from time to time? Absolutely, I expect I do! Its too much to read when the plants themselves tell the whole story. I'm not insulting you as a grower. It's just your written directions aren't very clear sometimes ... and today you were as clear as mud.

I will slow down on water, and adjust the nutrients a bit more,i do 8ml because it's half the recommended I think.
So how dry is dry, because the only time I let the soil dry completely was when she got worst, but it could be because I was giving only 1l.
So a 2gallon pot 1.7l ,1.9l is ok as long as the soil has time to dry?

Love all the reply. like I said I want to continue gardening , it's so amazing

RoadKillSkunkHunt said:

Correct, you don't "need" a moisture meter to grow good weed, but you do need a consistent approach.

I still use a moisture reader even after all these years. Why? I want to verify. Lifting a pot and saying "yes it's light isn't very precise." You can get away with it if you have experience, but its hard to judge if you don't. You also can't teach wet pot/dry pot unless you are there physically to judge this yourself. It's just too subjective and prone to mistakes for someone new to growing. (Oh it feels dry enough, I think I will water today because I'm too busy tomorrow. WRONG APPROACH!) The meter takes the guess out of it and this makes it best for those just starting out.



Before anything else, fix the watering issue. Once that is fixed, we can zero in on other problems. Everything this particular plant is dealing with leads back to improper watering. It really is that simple ... and watering is one of the easiest problems to fix.

@Eledin, I'll apologize in advance if this offends you. It's not meant to but its the truth. I never read everything that gets written. Does that mean I miss things from time to time? Absolutely, I expect I do! Its too much to read when the plants themselves tell the whole story. I'm not insulting you as a grower. It's just your written directions aren't very clear sometimes ... and today you were as clear as mud.

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No offense taken brother, its just that you said we didnt treat that issue when we did. Still a more intricate explanation on why is good to keep good watering practices is never bad.

Dots said:

I will slow down on water, and adjust the nutrients a bit more,i do 8ml because it's half the recommended I think.
So how dry is dry, because the only time I let the soil dry completely was when she got worst, but it could be because I was giving only 1l.
So a 2gallon pot 1.7l ,1.9l is ok as long as the soil has time to dry?

Love all the reply. like I said I want to continue gardening , it's so amazing

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With a 2 gallon pot you should be set with a liter of water. For fabric pots I would recommend adding half and after a couple of minutes the other half because they tend to leave dry pockets if you dont water slowly due to the fact that the water can scape from the sides. Water fully, lift it, when the weight has dimished water again. The pot should be way lighter than when you recently watered but if its paper light then you waited too long. Its not like they wont tell you anyway, leaves will start getting droopy like when you over watered.

Dots said:

I bought nutrient for the bloom only not knowing she would need more.
I used to water everyday and feeding every other day

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OP makes it clear - the problem is way over watering and bad nutrient selection.

Roadkill explains the water problem.

But you can’t feed a plant a shit ton of P (which it doesn’t need) with no N in veg (or bloom) and not expect your plant to yellow.

IMO the entire bloom feed is a bunch of B.S. to sell bottles of junk you don’t need. No need to get all hung up on numbers, but generally a ratio of ~2–1-3 NPK should get you through a grow without wasting money on silly sweeteners, sugar, or “candy”.

mancorn said:

OP makes it clear - the problem is way over watering and bad nutrient selection.

Roadkill explains the water problem.

But you can’t feed a plant a shit ton of P (which it doesn’t need) with no N in veg (or bloom) and not expect your plant to yellow.

IMO the entire bloom feed is a bunch of B.S. to sell bottles of junk you don’t need. No need to get all hung up on numbers, but generally a ratio of ~2–1-3 NPK should get you through a grow without wasting money on silly sweeteners, sugar, or “candy”.

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Silli sweeteners? Really? They dont make your flowers sweet, they make trichomes. Its not silly, there's a lot of science behind feeding carbs in flower. To me it looks like you shouldnt be giving advice.

Show your flowers without carbs and I can show you a flower twice as big with carbs, its a dare.

In fact, in all honesty, your flowers dont look more than average to me by looking at your profile. Maybe you should take notes instead of claiming something that useful is nonsense.

100% organic with carbs, lets see yours before you say I dont know shit.