air temp is 80degrees, i have a fan on inside my stealth grow box with intake and exhaust fans. indoors.. the seedling looked text book last night before i turned the light off for 6hrs. when the light came on the seedling was on the hydroton
Yes, it's toast. Damping. It happens. Just keep things very simple and ph your water. Don't worry about any ferts until you get a couple sets of leaves. I usually get one per season. The other seeds germinate fine.
This was lifted from another site if you want to get really into it:
Damping-is a fungal [/FONT]problem where the pathogens attack the tender stems and roots of the seedlings and lead to sudden seedling death. Seedlings look pinched at the base of the stem, others fall over, some wither away entirely and stunting occurs.
Once the process is underway, it’s hard to save even a few of your plants.
Damping off is not just confined to the seedling stage and can occur at any stage of growth as root rot but, with seedling is sure death and important to get off to a good healthy start.
Prevention is the best cure.
Sterilizing your starter mix, peat pellets etc reduces fungal spores and other undesireable bacteria and pathegons.
Seed starting mixes are not necessarily sterile out of the bag, especially once the bag has been opened.
Sterilize potting soil in an oven, using pans or roasting bags with a thermometer to monitor internal temperature. Heating the starter mix in a 200 degree (F) oven to an internal temperature of 180-200 degrees (F) for 30 minutes.
Sterilizing potting soil in the oven has a odor that many people may object to and can be done in a conventional microwave with moist soil.
Add 1 cup of water per quart or two of dry, soil mix and mix completely to work out any lumps or chunks of the mix. Additions such as perlite, and can be mixed in before microwaving.
Put the mix into a microwave safe container with lid and cover loosely, and microwave on high for 8 to 12 minutes, until you see steam condensing on the underside of the lid then close the lid tightly and allow the mix to steam at least 10 more minutes as the mix begins to cool.
Put that sterile potting mix/peat pellets into clean planting trays/containers.
If you’re reusing containers, clean them first with soapy water and bleach.
Less water, more air
Wet conditions can promote damping off. Don't over water. Keeping your potting mix barely moist rather than soggy is essential to healthy seedlings.
If you water from the top, water between rows of seedlings and try not to drench the tops of the plants.
Bottom watering seems to help by keeping the soil surface a bit drier, also. Pour water into a tray containing the seedling pots, and let them soak up as much as they can through the bottom. After 15 minutes, pour off any excess so plants don't sit in water.
Good air circulation helps prevent damping off especially in a crowded enviorment limiting air flow. A fan placed near your plants helps to keep the air moving.
Watering or misting seedlings with an antifungal solution will also help protect your seedlings.
One tablespoon of 3% hydrogen peroxide per quart of water is sufficient. You can also brew strong chamomile tea and add an ounce or two per quart of water. A one-time dusting of cinnamon or powdered charcoal on the soil surface can also be used as an antifungal agent.
A product called Captan(search Amazon)that will help prevent damping off.
Sterilizing your starter mix/peat pellets. Minimize wet conditions, and maximize air flow. Add an anti-fungal agent to your water.
These steps will help preventing the dreaded Damping Off, and you’ll have healthy seedlings for your grow room.[/I][/I]