I can't decide between these two plecos. Other than cost, anyone have pros and cons? I love the bizarre look of the blue eyed bristle nose with its long fins and dragon scales, but also the classy black white pattern and rarity of the royal king. One has a max size of 3.9 while the BN is 5.9 (inches) 36 gallon tank with 3 Rams and 15 Cardinals Thoughts on differences in care, messiness, personality, size etc? While a different species, apparently the royal king is similar to the tiger king, for reference.