It's only five RES Cecil and I doing it primarily for entertainment and to learn more about what makes them tick.

It's been a great learning expierence and I haven't killed them yet.

Than tank is actually a 75 gallons, I also have an algea eater in with them too which doesn't help the water quality.
No problem with entertainment. And the fact that they are healthy and you haven't killed them says a lot. You would be amazed how many people can't keep fish alive or keep them from getting sick, or don't understand the nitrification cycle. It's all about the water.
I guess I'm too serious as I always look at contained systems from an RAS standpoint like pounds per gallon, capability of the biofilter, ammonia and nitrite readings, how good the mechanical filter works etc. I'm not a mathematician by any means but more and more I find myself crunching the numbers.
I want to set up a huge aquarium in my show room above my customer counter imbedded in the wall to hide everything, but my pole building and coldwater system takes priority now. When I get to the aquarium I'll know who to contact for help!
Keep up the good work!
Has there been any fighting or territorial behavior exhibited?