you will get it all eventually... Heck I still spend hours a week reading websites about more advanced techniques... This hobby is always a learning experience.
We joke at our club meetings about how 6 people could give 7 opinions, but thats what you will commonly find in the hobby. So try to research as best you can, before making any drastic changes in your tank.
On the aqualizer..... it might work it might not, but for someone starting out I would stick to the tried and true methods... I can't say for sure but if it was me starting a tank i would spend my money on something that everyone could agree on.... And I don't know to many people in the hobby who think a good protein skimmer is a waste of money, but yea there are a couple...
Brandon