Humidity

If you follow the branches down there is likely some sort of damage you could see visually.

If you dont see anything it could be a deeper root issue.

How has your watering situation been?

I water 1400ml of water with mixed nutrients every 2 days. I use ph perfect nutrients. I use their calculations for my nutrients. Every 650ml of water i do 2.6 ml of nutrients of the 3 parts micro grow bloom.

Never any signs of over or under watering?

Did you get a chance to check for damage?

Moist.Farms said:

Never any signs of over or under watering?

Did you get a chance to check for damage?

Click to expand...

I only see damage maybe halfway down the branch. All the other leaves look in good health to me.