Yes, and their current situation looks great for sleeping, eating and drinking, but no room for play! I will find a bigger trough this weekend. There is no issue introducing 1 day old chicks to 1 week old chicks are there? I was hoping to raise them all together. SORRY so off topic from coccidiosis! I'm just an anxious new motherIMO, they need a minimum of 1 s.f./chick to start, and I like to give them 2 s.f./chick by the time they are 2 - 3 weeks old. They need plenty of room to play and stretch their wings.