Using supersoil about a week into flower bad def

Hey guys I got 2 autos about 2 weeks into flower and got some bad leaf crispy and falling off idk what type of def it is heres some pics mostly on lower leaves usibg supersoil

No nutes at all?

That's the challenge with soils like that for sure

looks like a phosphorus issue

how long did you compost your soil for??

Looks phosphorus related to myself as well.

Are you positive you don't overwater?

What calcium amendments did you add to your soil?

Good drainage / aeration?

Are you ph'ing water, or leaving it at neutral?

How long have you been preparing this mix for? (has there been ample time for it to break down properly first)

i see you can now buy subcools soil on the web, wasnt aware of that,
is it baught in or homemade?

It's coast of maine and it says it has crushed oyster shells for calcium I cut it with peat moss cause last time I put my autos right in they got burned I try not to water to much

Patriots781 said:

It's coast of maine and it says it has crushed oyster shells for calcium I cut it with peat moss cause last time I put my autos right in they got burned I try not to water to much

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Peat moss can be pretty acidic. It generally contains a lot of sulphur and can acidify soil. Sulphur will acidify things even more when wet, or continuously wet.

Low ph will lockout calcium and phosphorus. It'll also contribute to root disease. Especially if the water holding capicity is high and there isn't enough aeration and / or drainage.

Is the bottom of your pot staying a bit soggy? What did you use for aeration / drainage?