I like your enthusiasm and I'm glad that you are researching as we all do, but in this hobby there will be more than one answer to anything! This is an expensive hobby which sadly we learn by killing fish, its sad but its the reality, just try to see what others do and once you start it gets very hard but as time goes it gets much easier, good luck and ask questions when in doubt, cuc = clean up crew like snails which there are several species that will help you clean ur tank once the cycle is over.