A friend of mind has a F-RD and a M-Jag. they have laid eggs many times but they never hatch. I dont think these fish are close enough geneticly to interbreed.
It is possible there are pics on here somewhere of a jag x RD or trimac and it looks pretty nice. Its just hard to do and anyone who actually did it would go out of there way to take pics. Unlike this guy.
heres proof that my male dovii n female red devil have breed as they are with there eggs together 3 months ago and this was last weeks pics of there fry now!!