Ok just wanted to make sure it was normal we got some kind of Dwarf octo that was listed as a Brown Pacific. Smaller than a dime and nice coloring. It appeared dark brown when we got him but he has turquoise flecks/blotches on him and sometimes a rusty red coloring. Very pretty.Those look like octo poops to me! Sometimes they even have little stringy bits attached to them. I have seen poops in a wide range of colors, from light tan to darker red and sometimes black like the photos you have posted.