johanna are fairly common and can have good color, cobras are readily available online and females can be quite red as adults, jeff rapps has marmoratta right now they are pricey but it doesnt get alot better than a marm. just depends whether or
marmoratas are sweeeeettt! still though i love xingus. i will be picking up yakuza-iruzume's 7" female today at some point! this will make 2 xingus for me. i am still tempted to go to neds and get the little 3" that he has there.
Marms are comparable in length (around 16" in good conditions) to X1's, but they are more robust and thicker. X1's tend to be a more slender pike with a pointier nose. They will definitely do great in a 180. You could house even a larger pair of Cinctas in there easily.