I am currently using a 60 gallon fish tank as a brooder. I got 16 little peepers who have gotten bigger. The brooder is now overloaded with babies. I clean the brooder out, and ten minutes later it looks the same... poopy and nasty. When can the chicks be outside? We've been getting some nice 70 degree weather lately. Can they be outside all day and be put in the brooder at night? Here is a picture of the wyandotte to give you an idea how old they are (I lost track).