Leaves curling down at tips?

Okay so this is my first grow, and the leaves are curling down at the tips. I have read up about it and found out it was probablly heat stress from the lights or overdose of nitrogen.

I am using CFL's so I don't think it is heat stress because they have about 2 inches space between the plants and lights.

I am growing in MG Slow Fert Release soil. Till now this has worked perfectly and I didn't know why people "dis" it so much. I was wondering how do i flush MG nute soil? Is it even possible?

What else might cause the tips to curl downwards?

Pics would help but what you are describing is called eagle claw so a search for that term might help?

heat or need watering

The leaves are also recently going quite droopy? Could this be apart of it aswell?

Thanks for your feedback guys

droopy leaves can be a sign of both over watering or under watering and over watering could be your problem?

Usually that's over watering if the leaves stay parallel, but the tips drop. If the leaf and stem drop, it's under watering.

If you are adding nutes to your soil you will need to flush. Period. Next time dont use miracle grow soil. U will notice a difference in the taste of your buds when you dont use it. Less harsh taste, better burn. Buy Pro-Mix Soil less Mix $4.95 a 20lb bag same thing as Fox Farms. Your lamps may be a little to close try 4-6 inches, I also grow with CFLS and none of mine are closer than 4 inches. Hope this helped.

I looked at some eagle claw pics, Mine arnt as bad as theres but mine also arnt as old as theres so it could get worse. Alot of people suggested flushing, but can i do this in MG Nute Release Soil?

EDIT: Thanks for all input so far everyone above this has +REP

Here are some pics I took.

looks like over watering, you should read this thread

https://www.rollitup.org/marijuana-plant-problems/150004-plant-moisture-stress-symptoms-solutions.html

looksover waterd to me. howwet is your soil b4 you water.