Sick Plant , Yellowing Leaf edges.

Hello ,
Newbie here.

Setup:

600W MH
Carbon Filter
500CFM out take fan through reflector
300CFM in take fan
Fan
Temp: 81F
Hum: 39%

3 Berry Ryder Auto
1 Blue Himalaya Auto
1 Auto Assassin


Started in 1" Rockwool Cubes
7 Days , tranplant to party cups with coco coir
Light is 18" above plants
10 days , 1/4 strength rapid start root enhancer
14 days , 1/2 strength rapid start root , 1/2 diamond nectar , 1/2 flora grow , 1/2 flora micro , 1/2 flora bloom
18 days , distilled water

Leaf edges are turning yellow
on plant the leafs are curling up a bit.

Please any help would be great.
Thanks

Start of a magnesium/zinc deficiency... How old are they?? If they are around 2/3 weeks of age..start propper nutes..

Should I use some Cal/Mag ?
They are 17 days now. They were dry this morning so I just used distilled water , no nutes.
Or should I go up to 3/4 or full strength Flora grow , micro , bloom and nectar ?
Thanks

Yes use some cal/mag...Look to see the if the discoloration stops.. IF not up to 3/4 flora grow Should work out fine.

ok , thanks.
Should I do 3/4 flora micro , bloom and diamond nectar also , or keep those at 1/2 strength?
Also , full strength Cal/Mag ?
Thanks for the help.

Cal mag but I just use the epsom salt, quick fix, 1 tsp per gallon will get it done

chrishydro said:

Cal mag but I just use the epsom salt, quick fix, 1 tsp per gallon will get it done

Click to expand...

That is exactly what you should do... Just cal/mag and the epsom salt then keep a visual.. then continue with nutes at 3/4 id say.