Hi - 5 chicks are 8 days old - we were planning to keep them about 1 more week before taking them back to the farm. We have them in a large rubbermaid container - about 3' long x 2'wide x 2'high. Today they seem to be pecking each other and more active. Are they okay for another week in this? We're adding shavings and sand today so that will give them a little more texture to interest them. Thanks.