No I read the thread, and I comprehend the question. You didn't comprehend the question...
...and since you keep giving poor, ill considered advice, my patience for you is gone. I know you've been here awhile, so I can't understand with all of the information on AC at your disposal why you continue to be so obtuse and contrarian to what most people here consider general and proven knowledge. Maybe you just like arguing for the sake of it.
I do know that your off the cuff "nothing" answer is absolute BS, so as a dedicated enemy of misinformation I needed to (yet again) correct the BS you are putting out there.
They want to know what the most expensive fish they can breed in a ten gallon aquarium is. They have quite a few options, but I don't breed fish so I am unsure of the correct answer.
They did not ask if the most expensive fish available can fit in a ten gallon and breed.
Literacy, it's not just for dinner!