Airflow to prevent damping off?

Wes rigged up a small fan with power supply to pull air through the plant window. Fingers crossed it works! There’s always taking the baby plants in and out each day for sunshine but I’d really rather not. Because I’m lazy.

The small fan. You can see the plexiglass gap there and a larger gap is at the top, which you can see in the next picture.
The cause of all this nonsense (Gram the cat) walks by the clamp I need to put back up to hold the plexiglass in place. Briar supervises.

Damping off fungus attacks

Well we are having some damping off fungus in the plant window.  Lost the only surviving tommy toe tomato seedling and a lot of onion seedlings are falling over. I had hoped we left enough air circulation despite our cat blocking plexiglass but apparently not. The chef is looking into tiny fans to put there. I’ll have to start another tommy toe too.

Onion seedlings falling over from damping off, which is caused in seedlings ny overwatering. I set them outside in hopes that some might make it.