Lethargic rooster with green foamy poop

[LWalker77]

My Ayam Cemani rooster is lethargic and falling asleep while standing. If stirred, he'll walk around slowly but won't eat much and isn't foraging or watching over the hens. He has green foamy poop (pic attached). No sign of mites or difficulty breathing and no blood in the poop that I can see. My husband went to TSC to get Corid and rooster booster along with electrolytes and probiotics. Does this sound like coccidosis? This is my first time owning chickens and they've all been very healthy since we got them in March.

 

[Wyorp Rock]

My Ayam Cemani rooster is lethargic and falling asleep while standing. If stirred, he'll walk around slowly but won't eat much and isn't foraging or watching over the hens. He has green foamy poop (pic attached). No sign of mites or difficulty breathing and no blood in the poop that I can see. My husband went to TSC to get Corid and rooster booster along with electrolytes and probiotics. Does this sound like coccidosis? This is my first time owning chickens and they've all been very healthy since we got them in March.

How old is he?
What do you feed, including treats?
Any chance he ate moldy or rancid feed, got into a compost pile or into something toxic?

Treating for Coccidiosis is fine to do. If you have any antibiotics on hand, I'd consider giving those too.

Liquid Corid dose is 2tsp or Powdered Corid Dose is 1 1/2tsp per gallon of water given for 5-7 days as the only source of drinking water.
Do not add any extra vitamins/electrolytes that contain B1(Thiamine) to food or water during the course of treatment.