Blueberry 420 Auto

It looks like your leaves may have had some tiny droplets of water on them at some point which in combination with the intensity of light has burned them slightly. I wouldn’t worry about this too much. As for the new growth, it usually really green until it matures a bit and turns darks. You plants always end up being a bright lime green colour until they’re established. Good luck bro :muscle:

Topping autos all depends on how healthy and quick they are growing. If your unsure then go with LST and you will get a decent yield. Then once you see how they do you could try topping next time. I personally have had mixed results with topping. Good luck.

Looks to be the beginning of Potassium deficiency.

I don't see PH ec/ppm of your watering solution on your diary. Cant tell if this is because of lock out from salts or PH or if its just depleted in the medium,
was also thinking calmg but your diary says you a feeding that. The rest of the plants are looking great, tops are little bit faded.
I did see some nutrient burned tips on some of the leaves but its very minimal and nothing to worry about.

The majority of your bloom fertilizers are two parts P and one part K, But lacking in N, the plant still need Nitrogen in flower.
Tiger bloom 2-8-4
Besti Bloom 0-50-30
Grow big 3-2-6 vs 6-4-4 "hydro vs soil grow big"
https://foxfarm.com/product/foxfarm-hydro-liquid-pack
https://foxfarm.com/product/foxfarm-soil-liquid-trio-pack

3x Tiger bloom and 1x Grow Big Soil "4 units worth"
3-7-4 NPK ratio. if it was fed at the same concentration.

1x Tiger Bloom 1x Grow Big Hydro "two units worth"
2.5-5-5 NPK ratio, if it was fed at the same concentration. **much better potassium**

As for potassium, there is some in the black strap molasses you are using but the carbs count in it is quite high and case issues if you use to much of it.
max 1tablespoon in a gallon once a week also helps to use some microbes with it.

Also where is the third product Big Bloom from their TRIO Pack grow system?
Here are the feeding schedules as well if you don't all ready use them.
https://foxfarm.com/feeding-schedules
don't know why they have different ones for Canada and USA. weed does not grow different across the border lol.

Over all I think you need to tune in your nutrients and your plant will flourish.

Best of Luck and Happy Growing!