Aw, I’m so sorry this happened! You have gotten great advice here, and are doing a wonderful job. Try not to beat yourself up, though I know how hard it is not to feel guilty! I few weeks ago I got a new shipment of chicks in. A lot of them were struggling from the shipment, so I gave them Lots of TLC, and spent my whole day with them. I lost a few, and a few recovered. And one was still under extensive care. After I got them all back in their feet, I put them in the outdoor chick brooder I use. They thrived and I was so happy! I didn’t realize it, but the heater I was using was faulty. I came out one morning, feeling encouraged and excited, and found a whole bunch of frozen chicks

I was only able to revive two. I was crushed, so I definitely know how you feel! Accidents are just part of raising animals, you can’t blame yourself. I almost wanted to quit chicken raising that day. But we can’t let the guilt get tl us! You are clearly a wonderful chick parent, and doing a great job. My best wishes!!