First time grower. Need help

[Joshp423]

2 out of my 4 plants have some burnt tips and other symptoms. Is this due to over feeding? If not what else could it be and how can I correct it.

Medium/grow method:
Fox farm happy frog with 20%perlite

Feed: and supplements used:
Cal mag and fox farm trio
water source:
Was using distilled for first couple weeks then switched to tap water but have been letting it sit for multiple days. Ph to roughly 6.5

Strain/age:
Strawberry cheese from crop king. 19 days old

light used:
2 mars hydro 300w for 4 plants

Climate:
About 76-80f during lights on period and about 67-70 during lights off. 60% rh about.
Additional info:

20/4 light schedule
There first other than water was 3 days ago and they received 1ml cal mag, 5ml big bloom, and 1ml grow big

 

[Mañ'O'Green]

Ok so it looks like your soil is a bit too hot. The dark forest green color is an indicator for high nitrogen so flush it with 150 PPMs Cal-mag + 150 PPMs of your base nutrients PH to 6.0. Are you going to transplant these? Do these pots have good drainage? You might want to get the lights a little closer to stimulate some stretch.

 

[Joshp423]

Ok so it looks like your soil is a bit too hot. The dark forest green color is an indicator for high nitrogen so flush it with 150 PPMs Cal-mag + 150 PPMs of your base nutrients PH to 6.0. Are you going to transplant these? Do these pots have good drainage? You might want to get the lights a little closer to stimulate some stretch.

Ok thank you. What exactly do you mean by base nutrients? I don’t plant on transplanting. The 3 gal pots I have now have good drainage. Also, I’m new to this so take this lightly but I thought that raising the lights caused stretching Rather than lowering them? Thank you for your help.

 

[Mañ'O'Green]

Ok thank you. What exactly do you mean by base nutrients? I don’t plant on transplanting. The 3 gal pots I have now have good drainage. Also, I’m new to this so take this lightly but I thought that raising the lights caused stretching Rather than lowering them? Thank you for your help.

Good catch raise the lights . Your base nutrients are Fox Farm Trio in your case. Many brands of nutrients have many additives and usually an A and B as a base; that is what I meant just the A, B part.