Do you see what I am on about here guys, like I said it is getting worse as expected
Hopefully the pictures will show the discolouration and the tips of the leaves.
I would hazard a guess and nitrogen toxicity and nutrient burn
I quote....
“Sometimes you'll also see nutrient burn leaf tips also curl or "claw". The clawing can be caused by an overabundance of Nitrogen (
Nitrogen Toxicity), which is common for plants that are experiencing nutrient burn from overall high levels of nutrients.
Problem: You will notice the tips of your marijuana leaves showing the first signs of nutrient burn by turning yellow, tan, gold or brown. A light case of nutrient burn will only affect the tips of your leaves.
The yellow tips will eventually turn rusty brown and crispy. If you do not correct the problem, you may also notice the burn slowly spreading from the tips to the whole leaf. At this point, if you haven't done so already, you should immediately treat your plant (directions below) before there's more damage
Nutrient burn can also manifest itself as brown or bronze spotting around the edges of the leaf serrations (often when there's a problem with proper absorption of potassium), or with leaf tips curling downwards (tips pointing down is often associated with too much nitrogen).”