Grow room problems


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I have a tomato plant, sweet peas and some pepper plants in a grow room in my basement. I have two 100 watt spider farmer led lights in there along with a fan. My plants ate showing signs of some problems .Iam attaching a few pics to see if anyone has an idea of what it could be. Humidity is 35-50% and temp goes from 20-25C
 

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It looks to me like you've got some pretty serious nutrient deficiencies ... possibly Calcium, potassium, multiple nutrients? Could be a PH issue locking them out. Is there fertiliser in the soil? They might just want feeding.

For specific deficiencies, Find a good guide to symptoms, (I like this one: https://www.yara.co.uk/crop-nutriti...iciencies-pepper/potassium-deficiency-pepper/ : note there are several images of each nutrient disorder for each crop, click through them)

Take an educated guess at what nutrient your plants want, and find an easy soluble fertiliser (eg, for Magnesium, you can use Magnesium sulphate or 'Epsom Salts' ... you can either foliar feed (more diluted and spray on to give short term relief and to test for a response) or water with the fertiliser, and add it to your watering regime occasionally hereafter.

Other thoughts that might be related, or at least helpful?

You haven't had a mysterious number of gnats, midges, fruit fly or what ever you might have thought they were in your grow room/house have you? It's just your peas look like mine do with fungus gnats chewing on the roots.

Check your watering, how often, sure you are not overwatering? the soil looks quite dense and you might have a very solid (airless wet) root zone. This can reduce access to nutrients. (I like coarse coco coir chip to add air to potting mixes it reduces this problem).

Indoor grow rooms need a little balancing but I think all that high tech stuff is really cool and so do my tomatoes in the winter;-)
 
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Have you seen flies or aphids in your grow room? They carry diseases.
 

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