This is an interesting dilemma, because yesterdays shot had the long horizontal band, but today's show the vertical dark band book ended with two white vertical bands.
I went over photos of all the genera that seemed close, and todays shot almost appears to be from the genus Krobia,
K guiniensus has the long almost unbroken horizontal band
and on the other hand, K potaroënsis sports the two vertical white bands around a mid body darker blotch, but neither species quite matches, and both show much more brown and other colors.
OP, Your substrate is very white, and very bright, so I wonder if it is influencing the fish to "not" show true colors.
Often a bright, white substrate causes fish to wash out, especially when in new to a tank (for them).
