2x paneubert - remove the light and you will need to work on a bigger brooder. You have 7, they will out grown that bin sooner than you know. If you can get an appliance box (refrigerator) they work great. You will probably need a lid cause they will be testing their wings once they start feathering.
The smaller ones are probably snug as a bug in a rug. I switched over to MHP & have noticed chicks are quieter, less skittish and calmer than when I used a heat light. It's like a hen, security & warmth.
My Grand daughter got 2 Silkies 7 months ago for her Ag Class, breeder said cockerels. She sent me pics & she now has a pair
Glad you joined us and welcome. You'll find this a very helpful, informative & friendly group.
The smaller ones are probably snug as a bug in a rug. I switched over to MHP & have noticed chicks are quieter, less skittish and calmer than when I used a heat light. It's like a hen, security & warmth.
My Grand daughter got 2 Silkies 7 months ago for her Ag Class, breeder said cockerels. She sent me pics & she now has a pair

Glad you joined us and welcome. You'll find this a very helpful, informative & friendly group.