Yellow tips and some yellow spots on leaves

[SVA10]

Hello... Here i am again, asking for help.

So, i have some plants right now, and i even bought a grow tent, but im having a problem with this one [Big Bang Auto] i found some yellow spots 3 days ago, and some leaves with yellow tips, not all, but some. Can someone help a newbie here? [More info and pics below]

Grow Tent with a 250w HPS Light [Grow-And-Bloom] with CoolTube, Carbon Filter, air extractor, fan.

Big Bang AUTOFLOWER

Age - 24 Days

Soil - BioBizz Light Mix

Temps - 27C - 30C [80F - 86F]

Humidity - 55% - 60%

Ph - 6,5

Im using BioBizz BioGrow, used twice this week. 1/4.

I was using aswell RootFast since the plant was 5 days old and stopped using RootFast when the plant was 20 days old.

I don't know if this is normal or, what im doing wrong! So i need help.

 

[KingJoe83]

Let's we my first guess is up the nitro a bit. But then you got tip burning ?

its doesn't look like this so no mites

potassium?

 

[SVA10]

Let’s we my first guess is up the nitro a bit. But then you got tip burning ?

potassium?

Looks almost like this one but much less. I can only see a really light yellow, almost a bright green, you can't even see it on the pictures. The yellow/brown spots that im talking are these

that's the only leaf that has those yellow spots.

And 2 leaves have yellow tips. They are not brown, just yellow.

It's not overfeeding? I used 1/4 of BioBizz Bio Grow [NPK 4,0 - 3,0 - 6,0] 2 times in a week.

 

[Chris Scorpio]

Are they in a small grow plastic pot????

Maybe they are screaming for MORE ROOM

What size pot they in my friend??

 

[SVA10]

They are in a 5.8L [1.53 US Gallons] My friend told me these were the best size so i bought them. Is this too small?

 

[Chris Scorpio]

They are in a 5.8L [1.53 US Gallons] My friend told me these were the best size so i bought them. Is this too small?

Hard to see the plant vs pot now , can you get a side pic

Now long term that's too small, I'd look for 3g or 5g fabric pots for before flower

 

[SVA10]

Hard to see the plant vs pot now , can you get a side pic

Now long term that's too small, I'd look for 3g or 5g fabric pots for before flower

It's ok to transplant it later? since it's an AutoFlower?

 

[Chris Scorpio]

Missed the AUTO part
hmmmm

Is it showing Flowering Yet

 

[SVA10]

Missed the AUTO part
hmmmm

Is it showing Flowering Yet

Yes, it's starting to flower, and it's an Auto, i don't know if i should transplant. I don't really know if it's too much nutes, or if i should add more. Or like you said, if it's the pot. :\