If you are still breeding your original adults, I would stick with what you have. They are a fairly long lived species and you have many more years of breeding left in them.
I've just been in the hobby for a long time and my interest in focused mostly on corydoras and plecos. To me at least, each lineage looks a little different, compared to the others
I like to have them pair off naturally and let them pick their own mates. I would start feeding frozen foods including bloodworms and watch out for a pair starting to become defensive over an area.
I wouldn't rely on aq advisor and lean towards the experience of others. Websites such as aq advisor do not know ones maintenance schedule or filtration systems, more than not, they even occasionally follow the old inch per gallon rule.
Green water is amazing to grow them out in and grow the fastest in it, from my experience. I start off by feeding mine vinegar eels and then move to bbs as soon as they are long enough.
Yes, you can leave the lights on and no, it will not kill the green water. I would start off with aquarium water in the container to make sure there is nutrients in there, maybe even some water from a water change.