Indoor spot problem on leaves

[159]

Heya,
is it leafs or leaves ?
1st timer here. I have some spots on two of my three autoflowers, just on some leaves not all leaves. Here you can see a picture. Growing , blue himalaya, blue himalaya diesel and auto assasin, those spots are only on assasin and blue himalaya diesel, but blue himalaya looks healthy.

1)Growing indoors
2)I'am watering only when first inches of soil are bone dry. I use 2 gallon pots, and water every weekend.
3)Using soil mixed with perlite
4)It's 4th week now from seed

Can you tell me what these are? Maybe it's some deficiency and i can use biobizz alg-a-mic via foliar feeding?
http://www.igrowhydro.com/BioBizz-AlgAMic-1-Liter.aspx

Yesterday watered them first time with bloom nutes (I use biobizz bloom nutes at half suggested strenght, those are organic nutes), and week before i watered with some chemical nutrients for veg.

I started use bloom nutes because there are forming bud like this on the top, or maybe i did it too soon?
Also i don't see any spider mites, it's pretty clean in there.

And new growth is looking super healthy, thank god.

 

[JEMman]

Im not sure myself 159 but im sure someone with slightly better knowledge will be around shortly. Good luck with the girlies.. n welcome to the site

 

[AndyBotwin]

I've found that spotting on the fan leaves are one of the first signs of a pH problem that is locking out nutrients. Have you been testing your water and runoff?

 

[159]

I've found that spotting on the fan leaves are one of the first signs of a pH problem that is locking out nutrients. Have you been testing your water and runoff?

nop, still haven't received water ph tester, grrrr. but my soil tester shows something between 6.0 - 7.0 but it's a shity tester.

in whole they look like this - - - - - >

 

[KUDO]

:howdy:BRO,you need to get one or you going to have more problem for sure pick a chep water tester up for now, any garden shop well or should have one,and get some ph down too i use orgince ph down,and ones u got a teaster, i would flash them with abit of Empson/Sait at the right ph 6.5, and then after with a feed at the right ph Kudo,

 

[159]

:howdy:BRO,you need to get one or you going to have more problem for sure pick a chep water tester up for now, any garden shop well or should have one,and get some ph down too i use orgince ph down,and ones u got a teaster, i would flash them with abit of Empson/Sait at the right ph 6.5, and then after with a feed at the right ph Kudo,

I think i will get it till next watering.

 

[JM]

they are looking good... you are on track, but kudos right... you need to test ph real soon... its a MUST for continued healthy growth especially as you start adding nutes... they can really throw ph swings on you... :smokebuds:

 

[159]

they are looking good... you are on track, but kudos right... you need to test ph real soon... its a MUST for continued healthy growth especially as you start adding nutes... they can really throw ph swings on you... :smokebuds:

So is this that bad thing that nutes can bring water ph up or down? Even organic nutes?

 

[KUDO]

the nutes well bring the water down maybe not much,so put you feed in fist then get the ph right,all togiver,
Kudo

 

[Monkeypox]

I agree , nutes then ph balance .