stunned growth, plants don't drink feed
I'v got a problem with a stunned plants. Since i have had connected them to IWS system they looks over watered. I grow in coco and when watered the plants don't seems to drink the feed and the pot i heavy for few days. For almost now 2 weeks plants barely growth anything!
EC - 1,4, ph 5,8 - 6,2
hum 60 %, 26-28 C degrees, 19-20 during the night as it is 18-6 schedule
I'm growing under 2 LED lights equivalent of 600w and 1 hps 600w at the moment, for veg.
I'v done flush as i been thinking about nutrient lockdown 2 days ago.
But if you have any ideas what could go wrong or how to help, please let me know!
Nice a coco grow, I can help fix this lol
Welcome to percys mate. Over watering in coco is not easy, as it has very good drainage. Once you feed, any excess water will drip out the bottom and then you drain it away.
As long as you get at least 10% run off from every feed, and that run off is removed from he trays, you will see very few problems.
The problem lays somewhere else I think
When you linked up the IWS, did you make sure all the pipes and buckets where clean?
What is the EC of your feed made up of? Like what brand nutrients and how many mill per litre?
I second what Macky says, it’s hard to over water in coco, more info needed to help diagnose mate 🤙🏻
Also the plants are clones, and i know other person who got same clones and he had similar issues and apparently, he kept the plants till the pot was dry, then he just feed them and everything went normally after that. But i'm not so sure about it as you most likely know "you never know was the truth" in this environment.
he kept the plants till the pot was dry
This is the problem mate. Ill explain:
Coco is not the same as soil, you do not want it to dry out, and it should be kept damp at all times.
Coco is void of nutrients, you add all the food yourself from day one. You use what is known as salts based nutrients.
When the water in the coco is drunk by the plant, and evaporated, it will leaves salts behind. This cause the EC of the medium to spike, as there are more salts left behind, in less water.
Coco should be feed, every day, at the most every other day, but it should be wet at all times. Other wise a salt build up can happen, and EC spikes, and that will cause issues.
Sometimes, you can burn the roots because there is too much salt in the medium and it rasies ph massively.
Way too much cal mag too if thats in every feed mate.
Right, so this is what I suggest:
Mix up a new feed, double the amount of water you usually use. So, if youre using 2l each plant, mix up four this time.
In that nutrients mix, just put Dutch Pro A n B
Multi total should on be used once every 2 weeks, and the plant wont need any more root stim at this stage so drop that too.
So just A n B, go for 1.5ml Per litre, then adjust the ph to 5.8
Pour all the water through, and collect all the run off.
Doing this will reset the medium to the right balance and your plant will be growing by tomorrow
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