Wilson's a two time pooper, has been since he was 8 weeks. Meaning that he always poops twice. His second poop has always been softer than the first. Wilson is a eater, loves the stuff. He ate the poo of old dog who passed, Ace, all the time. I always suspected it was because Ace was on a different kibble and that it was something in the food itself that he liked. When Ace passed, Wilson quit eating it so that confirmed it for me. Now we had Jack on a different food not too long ago (same brand as Wilson's just a different flavor) and Wilson started to eat Jack's poo. As soon as we put Jack on the same food as Wilson the problem was solved.
If you were to search Wilson's name here most articles that would come up would have something to do with him and poo!
Hope that helps a bit. As long as it's not runny and Colossus does have consistency in his poo he should be fine.