Also there is hardly any smell coming from then not unless you get up close to a flower and smell it, I thought at this stage they would be reeking good job I haven't got a carbon filter in wasting electric, Ohhh yeah that's another thing I've been eyeing up a full tent grow kit with a new light 600ps light, A rhino carbon filter, YoYo hangers the lot it's on growwell, ill Chuck the link link up now, Tell me what you guys think off it before I buy it next week on pay day lol I'm currently growing in my cupboard with my light mounted to the ceiling a few fans in there and Mylar taped allover in there not a bad little grow room actually lol
https://www.growell.co.uk/grow-tents-sheeting/grow-tent-kits/bay6-xl-complete-kit.html?nosto=nosto-page-product1
It could be a few problems
1) Old, Light-Starved Leaves Are Dry or Crispy – May be Normal
-Usually, the bottom-most leaves start to get a little crispy or yellow as they start getting old. If your dryness problem is just affecting the oldest leaves that don't get much light anymore, you likely don't need to worry.
After your plant has grown a few sets of leaves, it's very normal for the first few sets of leaves to turn yellow and die, especially if they're not getting light anymore
2)Leafs Closest to Light
- If the leaves affected are the ones which are closest to your lights, it's possible that the crispiness is a result of 'light burn' or 'heat burn'. You can tell if this is the cause because the only cannabis leaves affected are the ones closest to the lights or source of heat.
Light Burn (can happen even if the temperature is cool because the light is too close)
3)Leafs Near Hot Lights
-Even if the grow light is a good distance away from your cannabis plants, they can still get stressed out by heat. Cannabis plants generally prefer temperatures under 85°F / 30°C, though some strains are more sensitive to heat (shorter, bushier strains are often more sensitive to heat than the longer, lankier strains). Most plants are fine with a few hot days, but if it's hot every day for weeks, your plants can really start to suffer. Most marijuana plants can handle a small heat spell, but they don't want to live in a desert!
4) Leaf Edges – Likely Nutrient Burn
- If the dryness affecting leaves that are new growth, it's possible that you are you are giving your cannabis too many nutrients and it's showing the first signs of nutrient burn. Usually, the first signs of cannabis nutrient burn are yellow or brown tips on leave.
5) New Growth – Possibly a PH or Nutrient Problem
- The last reason your cannabis may get crispy or dry leaves is due to some sort of nutrient deficiency. The best way to prevent nutrient deficiencies is to make sure you're giving your plants the right type of nutrients and pHing the water to the proper level depending on your growing medium. But that doesn't mean more is better. It's important not to overload your plants with too high levels of nutrients.
6) How to Fix
First, check the pH.
If a Magnesium or Iron deficiency, consider getting a CaliMagic supplement that is made for plants (you should always add Magnesium and Calcium at the same time because these two nutrients work together closely in the cannabis plant, and are important in iron uptake).
If grow lights are on a 24/0 schedule, change to 18/6 and move the lights up a few inches. This nighttime break and slightly lower levels of light will help an ailing plant recover more quickly. Once the plant is growing fast and healthy again, you can go back to full power.
If you don't know what type of nutrients to use, I recommend using the General Hydroponics Flora trio for hydro or coco, and Fox Farms Soil Nutrient Trio for your soil grow.
Learn everything you need to know about cannabis nutrients!
Fox Farm Soil Trio is great for soil grows
Hope this helps bro