Blue treacle issues

[Funky Trichomes]

Got three babies 2 weeks old today, growth is alright I guess. Leaves are curling up a bit on the fan leaves & yellowing in areas. On one plant it is significantly curling at the tip kinda looks dead.

I did definetly over water & nute at the start and the pH was all over the place due to me thinking I should treat the medium like a coco grow just cause it has coco in it!

The curling and the yellowing kinda looks like a pH flux issue but also a nitrogen toxicity issue too among other things any ideas anyone? Will it need a flush or just plain water maybe with some biosys?

 

[Garage_Grower]

Please fill in this form: (copy and paste part is below, this first one tell what specifically to include)

-Problem: (brief description)
-Medium/grow method: soil; soilless-- coco, or peat based like Promix, etc. (please provide the actual product name); DWC, NFT, etc.
-Feed and supplements used: include brand, dosage/strength, frequency of feeding and watering (alone); method-- by hand, drippers, rercirc' or drain-to-waste,... N-P-K #'s too if you can!
-Water source: RO/DI; tap- dechlorinated-?..... EC or TDS reading; pH (don't bother with this on RO/DI, do bother with TDS/EC though to confirm it's working well enough)
-Strain and age
-Climate: night and day ambient T and RH%; res' temperatures; any extremes in T/RH% exposure
- Light used: HID, LED, COB, combo of,... wattage; light cycle hours (20/4, 18/6 , etc.); distance to tops....
-Additional info: How long have the plants been affected?...How fast did symptoms appear?... Anything else you think might be relevant..

--Pictures including WHOLE PLANT PICS, and troubled leaves.. use normal light or flash as other light sources ruin color rendering, critical for diagnostics!

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(copy and paste)-->

Problem:

Medium/grow method:

Feed: and supplements used:

water source:

Strain/age:

light used:

Climate:

Additional info:

 

[Funky Trichomes]

Problem: Tips curling, edges curling up, drooping and yellow spots occurring?!!!!

Medium/grow method: 65% bio bizz light mix, 35% coco.

Feed: and supplements used: general hydro but switching to bio bizz organics.

water source: 6.2 mineral water

Strain/age: blue treacle 2 weeks

light used: 60pw hps currently on 400w setting 26 inches.

Climate: rh: 64 temps: 26-28 celcius, oscillating fan, passive intake & extractor fan.

Additional info:

I did over water a lot at the start & gave a lot of nutes plus pH was around 5.8 due to me being an idiot and feeding like a predominant coco medium should be watered. Stupid me but we live and learn eh. Thinking to just feed plain water maybe with some ecothrive biosys and some cal mag? Introduce nutes when it looks like it's recovered. I haven't watered them in about 4 days. Should I flush? Or just do a couple watering at 10 percent run off?

 

[Funky Trichomes]

Help!? Please!