Not sure I understand your question but that bag of soil in the picture is a water only soil. So it should not need to be amended.
I’m trying a similar type soil
My seedlings and clones are doing just fine after the transplant.
Not sure I understand your question but that bag of soil in the picture is a water only soil. So it should not need to be amended.
I’m trying a similar type soil
My seedlings and clones are doing just fine after the transplant.