I bought some crumbles made by wardleys, and my fish poop white, which isnt that good ,so if you have these too, only try to feed it to your fish once or twice a week

Unless the food is white as well, white poop is an indication of some kind of internal bacterial problem. What color does the food have?

The food is dark brown, hard, and kind of looks like gravel. My goldfish didn't like them too much. When I dropped them in dry, they kept spitting it out and sucking it in over and over. When I soaked them in water, they spent like 10 minutes trying to chew it. They looked like they were going to choke/throw up.