This helps a lot as I have had my tetras for a while and no breeding taking place. I will try lowering the ph to see what impact that has(slowly of course) I also have betta fish in there which may also benefit from the water adjustment. Funny thing is that the fish have established certain groups which lead me to believe I'm very close.
http://www.youtube.com/watch?v=QqDho...Si0DIh6MYLYuDA