This is a video clip of a 2 juvenile salvini starting to form a pair and establishing their bond. I initially had 5 young fish and all eventually showed male colouratio so I tracked down some females and added 3 to try and get a pair. By this stage 2 of the original fish had far outgrown the others. On introduction of the new females one of the larger fish decided to unveil her glorious female colouration. These 2 larger fish are the ones starting to pair.