If they won't eat the ff, try mixing a little yogurt in his water. I also use that method when I don't have much yogurt on hand and someone in one pen or another seems to need some.
I used to know this lady who tried to live on sugar because it gave her energy. She was as thin as a rail and was constantly in and out of her doctor's office. She had "irritable bowel syndrome" which, you guessed it, presents as diarrhea. Yogurt can help.
Does the whole grain mix have wheat in it? A lack of B vitamins can cause it as well.
I had a thought about the yogurt. You said your big girls will eat it, will Snickers eat it? I was thinking perhaps you could give him a dish of it, on the opposite side of HIS fence from your big girls with a dish of it. They will eat heartily and he will watch. They will likely flick yogurt everywhere. He may try some that has gone flying through the air or has landed on him or Snickers.
You also might try giving him some shredded cheese. The fats will slow down the digestion.
Do you supply vitamins/electrolytes in his water? He would need these to supply what he loses through the super fast and watery "discharge". There's also acidophilus that you can buy especially for birds or you can get supplements that come in capsules. Empty this into his food. I was also informed that you can sneak many things into a chicken by "buttering" toast with it. Maybe butter some toast and sprinkle on some acidophilus powder or just spread yogurt onto some toast. It doesn't have to be thick.
If all else fails, you can actually force feed him. You probably would only have to do it once. Get a teaspoon of yogurt and hold him on your lap with his feet locked between your legs. Grip his comb and with some yogurt on your finger (just a little) use that fingernail at the edge of his beak to get him to open his mouth. When he does, simply swipe your finger against the corner of his mouth, depositing the yogurt inside. Or you can swipe it against the bottom of his lower beak so that he receives it next to his tongue and can then taste it but I would do several at the corner of his mouth first.
I sure hope you can get him to try it.
I used to know this lady who tried to live on sugar because it gave her energy. She was as thin as a rail and was constantly in and out of her doctor's office. She had "irritable bowel syndrome" which, you guessed it, presents as diarrhea. Yogurt can help.
Does the whole grain mix have wheat in it? A lack of B vitamins can cause it as well.
I had a thought about the yogurt. You said your big girls will eat it, will Snickers eat it? I was thinking perhaps you could give him a dish of it, on the opposite side of HIS fence from your big girls with a dish of it. They will eat heartily and he will watch. They will likely flick yogurt everywhere. He may try some that has gone flying through the air or has landed on him or Snickers.
You also might try giving him some shredded cheese. The fats will slow down the digestion.
Do you supply vitamins/electrolytes in his water? He would need these to supply what he loses through the super fast and watery "discharge". There's also acidophilus that you can buy especially for birds or you can get supplements that come in capsules. Empty this into his food. I was also informed that you can sneak many things into a chicken by "buttering" toast with it. Maybe butter some toast and sprinkle on some acidophilus powder or just spread yogurt onto some toast. It doesn't have to be thick.
If all else fails, you can actually force feed him. You probably would only have to do it once. Get a teaspoon of yogurt and hold him on your lap with his feet locked between your legs. Grip his comb and with some yogurt on your finger (just a little) use that fingernail at the edge of his beak to get him to open his mouth. When he does, simply swipe your finger against the corner of his mouth, depositing the yogurt inside. Or you can swipe it against the bottom of his lower beak so that he receives it next to his tongue and can then taste it but I would do several at the corner of his mouth first.
I sure hope you can get him to try it.