1. A transgenic barb progeny whose genome is obtained from a first transgenic barb, wherein the first transgenic barb exhibits fluorescence and comprises a chromosomally integrated expression cassette encoding a fluorescent protein and a second barb, wherein the first transgenic barb exhibits fluorescence and wherein the chromosomally integrated expression cassette in the first transgenic barb is comprised by the “Red barb 1 transformation event,” sperm comprising the Red barb 1 transformation event having been deposited as ECACC accession no. 16121901, wherein the transgenic barb progeny exhibits fluorescence.