Rooster is not eating as much

[CCsGarden]

Will he start drinking more water as well?

He may, if he gets enough energy.

 

[Birdlove2011]

Ooo okay would I have to order those online? Is there a specific brand that would benefit my rooster?

You can if you want. No specific brand really I just pick up a bag from my local tractor supply store. or forge my yard. Here is what I use.