Leaf tips curling down

Jwalsh022

Member
should start by saying im a new grower lol so I’ve been growing a gorilla glue auto from ilgm and it’s been very good up until about yesterday. I started noticing the tips curling down like the claw so I’m thinking too much N? But at 220ppm? 80 of that being tap water. Then again it could be a magnesium deficiency? I use GH flora trio along with cal/mag and hydro guard in a 5 gallon dwc. I’ll attach some pictures.

Tent: 32x32x64in
Light: Vivosun 600w full spectrum led
Air pump: 6w active aqua (I think)
Fans: 4in in-line cloudline connected to a carbon filter and 2 fans for air circulation
Light cycle: 18/6
Light was at 24in away
also air temp is around 75 degrees and res temp usually stays under 70

Any help would be greatly appreciated!

current feed for 3 gallons of water is:
3ml cal mag
3ml micro
3ml gro
1.5ml bloom
3ml hydroguard
sitting at 220ppm
 

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