Well thanks for the compliment but all I have learned i have learned from others.

I won't make advice on your water meter reading.

But looking at your pic....here is what I would do....

1. Lower your light. It looks too far away from the plant tops. I would aim to reduce it to no more / no less than 18"...

2. Place a stationary permanent FULL TIME fan so that it is blowing the air BETWEEN the light and the plant tops. DO NOT make it oscillate...keep another fan for that. Make this fan blow NON STOP between the light and the plants.

3. Water more often. HID and fans will dry out your plants faster than the sun will. The constant air flow will take the moisture and carry it away and the light will add heat. While 90 Degrees is very rough on a plant, it is still fine. But you MUST water the plants and do not allow it to get so dry.

Try these things for 7 days and lets see if you can get them going.

Also, make sure your water is dechlorinated and pH 6.5 - 6.8.

Do these things and ye shall get the growth on track. When sprouting, I like to use much smaller containers as it is easier to water a little pot than it is a big pot. Thats for future reference.....

Here are two plants I grew for 12 days in a little container...note how moist it is...that is how yours need to be for a long while to get growing.

Good luck and HAPPY GROWING