Moonbeam, you're going to lose your plants. Never give seedlings anything, and please don't recommend to others to do that. Also this is a threadjack- start your own thread.

To the OP- your plants look like they will make it, and you are correct that poor pH would cause that. The new growth you are seeing looks much better. From here in, adjust your water pH before you give it to the plants, and that should fix you up nice. 6.8 is a very good place to aim for.
stinkyattic Reviewed by stinkyattic on . Yellowing Lower leaves and brown spots Have a few seedlings whose leaves are starting to yellow/develop brown spots. I'm pretty sure its a pH problem(just got a meter and had been watering with 7.5 ph water). Did a runoff test and the pH was around 7.4. Runoff water was a yellowish color. Flushed with 5 times their volume in water and could only get it down to 6.8. Anything else I can/should do? Thanks for the help :thumbsup: Rating: 5