some of the yellow pigments look like they are part of the red chromatophores, and this has been an issue that has been bugging me. in thinking about it, it occurred to me that the yellow portions could be new growth of the red chromatophores. it got me thinking that it might turn red after the shrimp milts. it seems that the red portions might grow between molts and expand after a molt. this doesn't explain the chromatophores that are well developed but remain yellow, but it makes sense for the yellow present in the red chromatophores. ill isolate one of the shrimps, wait until it milts, and see kid the yellow fringes turn red.