Is this nutrient burn?

Hey guys can anyone mee help to indentify this problem? I dont know if it can be over watering, nuteburn or ph related.

The plants arre in day 10 since they sprouted.

This is what I did so far:

Day 1, They sprouted.
Ro Water 0ppm
Diamond Nectar:2,5ml
Armor Si:0
CalMag:0
Micro:2ml
Gro:0
Bloom:0
Ph:6.2
170ppm total

Day5
Ro Water 0ppm
Diamond Nectar:2,5ml
Armor Si:0
CalMag:0
Micro:2ml
Gro:0
Bloom:0
Ph:6.2
170ppm total

Day7
Ro Water 0ppm
Diamond Nectar:2,5ml
Armor Si:0
CalMag:0
Micro:2ml
Gro:0
Bloom:0
Ph:6.2
170ppm total

Day9
Water 0ppm
Diamond Nectar:2m
Armor Si:0
CalMag:0
Micro:2ml
Gro:1
Bloom:1
Ph:6.2

272ppm total

Temps during light on 26-27celcius
Temps during lights off: 24-25celcius

Humidity: 60-50%

270 ppfd

Medium: %50 Sphagnum / 50% Perlite

Nutrients: General Hydroponics Flora Series

A bit of overwatering and a bit of nute burn. Don’t water until the pots get light, use a fed, water, feed, water routine, they don’t need nutes every time.

Phytoplankton said:

A bit of overwatering and a bit of nute burn. Don’t water until the pots get light, use a fed, water, feed, water routine, they don’t need nutes every time.

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Thanks for you reply.
Ok. So I just have to wait for the pots to get lighter for now right? And them just water, feed, water, feed. Got it