I got some new chicks today. I'm not even sure exactly how old they are. The breeder (a BYC member) mixed some chicks from different hatches and was unsure of dates....and breeds/mixes. Two are between 6 and 8 weeks old and have been put into their own section of the brooder. The others are younger and have started feathering out. I went to the feed store to get medicated chick starter before I got the birds. I didn't notice until I went to use it that is labled simply as Manna Pro "poultry feed". The feed store is closed until Monday. Is it ok to feed this to them for a couple of days?