Yellow spots help!!

Using ffof and no nutes yet as she's only 4 weeks

first 2 weeks in reg soil ? if not you put it strait in OF that has ton's of great nutes ,but not good for first 2 weeks.so ya started with a nute overdose(just a little).Or just a sickly seed.not enough info or pic of whole plant..peace.

Looks like P def

Ffof mixed with light warrior. Plant only has two leaves like this but looks healthy otherwise.

What's the Ph of your soil? What's the Ph of your water?

6.5 soil 7.5 Brita filtered water

7.5 way to high! 6.5 for water max

Can I use ph down from the pet store to correct my water? I noticed my tap water is 7.0 and after I filter it it raises to 7.5. Is it a bad idea to use this filter method even if I can correct the ph ?

Just use the normal tap water! Hose water has worked fine for me over the years!