So, I'm not sure if this is at all what you were thinking about, but this adorable fish is what I thought of when I read this. It's a Yellow Headed Jawfish.
I found it by sucessively searching for "detritus fish" "detritus fish tube" (which brought up a lot of Bivalve and Mollusk info, oddly), "digger fish" (which brought up this video), and then I tried to think about how would people describe this in dumb Google terms? Rock spitting fish? and that brought up a YouTube video which described the Yellow Headed Jawfish, and that's the link first here!
If that's not what you're looking for, I'd go about it like that. "Detritus Nests", if you haven't tried it already, isn't going to help. :( Also, I found that putting "nest" anywhere in the search just brought lots of bird-things into it. Which is interesting, but probably not what you're looking for.
Since I'm not doing any homework for school... :D
I found it by sucessively searching for "detritus fish" "detritus fish tube" (which brought up a lot of Bivalve and Mollusk info, oddly), "digger fish" (which brought up this video), and then I tried to think about how would people describe this in dumb Google terms? Rock spitting fish? and that brought up a YouTube video which described the Yellow Headed Jawfish, and that's the link first here!
If that's not what you're looking for, I'd go about it like that. "Detritus Nests", if you haven't tried it already, isn't going to help. :( Also, I found that putting "nest" anywhere in the search just brought lots of bird-things into it. Which is interesting, but probably not what you're looking for.