Sorry about your loss.
I raised my 1st batch of chicks in September and now have 12 healthy laying girls. They were shipped on a Wednesday and arrived on Friday. Here is what I did:
1) My brooder had sides 12" tall to protect from draft
2) I used a 250 watt red heat lamp bulb - at one end so they can get away if too hot. I had a thermometer in there, but went by the chicks. If they were huddled under the lamp they were too cold. If they were at the far end, they were too hot. You want them peeping and active. I found that they actually preferred about 5 degrees less than recommended.
3) I put an electrolyte solution (quik chik-mcmurray) in the water for the first few days
4) I removed each chick from the delivery box one at a time and dipped its beak in the water. Let it have a few minutes and proceed to the next. If there are sleepy ones, start first.
5) I kept the food out of the brooder for at least an hour to let then drink and rehydrate.
6) I kept paper towels over the shavings so they knew to eat the food. This also makes cleanup quicker since they poop everywhere.
7) I put my waterer up on a block, or you can put marbles in it, to keep the chicks from falling asleep in the water and drowning.
8) I picked up each chick multiple times per day to give them a look over and make sure each one was healthy. If a chick was angry, I held it til it settled down. I have 12 extremely friendly chickens that greet me at the door and I can pick up still to take a look over every day.
I wish you the nest of luck with your next batch. This is a great website with lots of friendly, knowledgeable people. I spent at least a month reading on here before I got started.

I raised my 1st batch of chicks in September and now have 12 healthy laying girls. They were shipped on a Wednesday and arrived on Friday. Here is what I did:
1) My brooder had sides 12" tall to protect from draft
2) I used a 250 watt red heat lamp bulb - at one end so they can get away if too hot. I had a thermometer in there, but went by the chicks. If they were huddled under the lamp they were too cold. If they were at the far end, they were too hot. You want them peeping and active. I found that they actually preferred about 5 degrees less than recommended.
3) I put an electrolyte solution (quik chik-mcmurray) in the water for the first few days
4) I removed each chick from the delivery box one at a time and dipped its beak in the water. Let it have a few minutes and proceed to the next. If there are sleepy ones, start first.
5) I kept the food out of the brooder for at least an hour to let then drink and rehydrate.
6) I kept paper towels over the shavings so they knew to eat the food. This also makes cleanup quicker since they poop everywhere.
7) I put my waterer up on a block, or you can put marbles in it, to keep the chicks from falling asleep in the water and drowning.
8) I picked up each chick multiple times per day to give them a look over and make sure each one was healthy. If a chick was angry, I held it til it settled down. I have 12 extremely friendly chickens that greet me at the door and I can pick up still to take a look over every day.
I wish you the nest of luck with your next batch. This is a great website with lots of friendly, knowledgeable people. I spent at least a month reading on here before I got started.