What's wrong

[Mireille]

I started my tomato seedlings this year as usual. But when it is germinate the first leafs turned out yellow, than dry and fall. And the plant do not grow after that. I have some plants that are 1" high after 1 month. The real leaf does not come out. I use Promix as I usually do for many years. There is no lack of water neither. Could someone tell me what happens with my seedlings ?

[Lee]

Hmm.... Tough call.
My first thought was the growing medium. But, promix should be a pretty good
choice, and you've used is sucessfully before, so that isn't it.

Based on,

There is no lack of water neither

my second thought would be too much water.

I would transplant some seedlings in new mix/pot and see if that helps them turn around.

Good luck!

Lee

[TZ-OH6]

Something could have gone wrong with the promix or your water. Rather than try to figure out what the contaminated factor is, I would start over with a different brand of seed starting mix, and maybe even use bottled purified water. The sodium in softened water can cause problems etc.

[PaulF]

I would review the light source, the duration of the light and the light strength as well as the suggestions above. Since the leaves dry out and fall off does not sound like too much moisture. Perhaps room temperature has something to do with your condition. I agree that starting over may be the best solution. Good luck.

Softened water does not contain more sodium than unsoftened water; the salt is used to strip the excess "hardness" minerals like calcium and magnesium from the ionic medium in the exchange tank of a water softener. This solution is usually flushed into the sewer line and never enters into the regular water supply. Water for plants should never come from this flush line.