Plants gone from nice green an healthy to pale and sad

[Brettdawg]

See if anyone can help me out.
Heres details below
What you thinks up with this plant. Three days ago this was nice green all leaves praying.
Had cold conditions liek 15 degrees for three days. Ive put heater in now its 23 degrees humidity 55.

Im growin in autopots so bottom feed
Last three days or so the rez as hardly moved.
As this caused lock out?
And other defiences
Leaf tips seem to be dying off on new grpwth if ya see in first pic

Let me no what you think to do next. Cheers.

 

[Brettdawg]

This was plant on the right 4 days ago.
Rez dont seem to have moved much either.

 

[Brettdawg]

They start to wrinkle and the tips dry.
cud this be nitrogen defiencey.?

Need Any more information let me no
Rez is 1ec
Ph 5.8-6

 

[Trixie]

Not if you are using a complete fertilizer. If you keep your rez at 1.0 EC, there shouldn't be any deficiency. I think maybe your watering frequency could be adjusted to fix the problem. If you use RO water with cal mag and a complete fertilizer you should be ok.

 

[Brettdawg]

Feedinng cana a&b
House an garden roots excelarator
On autopots which means they drink when they want