Is it the water ? · School Of Hydroponics L & E

Is it the water ?

So in my quest to narrow my problems down, I was having a look at my seedlings. They are around about day 11 from germination and I’ve been adding my filtered water only. I noticed the dill had gone purple (and read it was a sign of stress). I also noticed some of the leaves slightly yellowing already. What I can’t remember is this normal? Do they look like healthy seedlings at day 11 or not? Tonight I added half strength nutrients.

@Chad Miner

what do you think? My previous seedlings I bought RO water and used that.

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