good work on the tank. You seem like you understand the natural processes involved and make yourequipment selections according to what you feel are necessary for the tank which I applaud instead of just buying something a store tells you without understanding the purpose. The issue of how much is spent and on what is purely your decision and as long as you are fine with it so should everyone else. I also applaud the effort to simplify maintenace tasks through advanced aquarium technology. It definately allows you to still enjoy other aspects of life like children whenyou don't have to spend hours and hours testing, cleaning, dosing, etc.... I would be right there with you if I had a tank of that size.