Genetically modified convicts/angelfish? I don't know how they do these, maybe someone with more knowledge can spread some light on the subject. I understand the Glofish because the zebra danio's entire genome is mapped (which is what makes it a great candidate for lab science studies), so figuring out where to cut on the DNA strand and insert new fluorescent DNA is feasible. Maybe they mapped the genome for the convicts and angelfish too?
I don't know what the purpose of these would be though. Maybe fluorescent convicts will make them easier to prey upon if irresponsibly released into the wild as an invasive species.