I would work the temperature down each day until about 10 days,,,ie (95, 90, 85,) it is summer now so might a little light at night if they are outside,,,if it is 90 out, then don't worry, just make sure they are clean fed and watered.
Quote:Where you're in Fla, make sure they have some room to get away from any heat source you provide, depending on your set up. The chicks will let you know by their actions whether they're comfortable or not.
Please use a thermometer in your brooder. Yes, chicks will show you when they're too hot or cold, but there have been plenty of posts about "What's wrong with my chicks?" and the answer has come down to they're either fried or frozen. Behavior itself is not the only reliable way to discern whether they are at the correct temps. Please make sure your temps are right with a decent thermometer.