the HQI will overdrive the bulbs shorting there life to 4-6months, ouch $1400 a year on bulbs
Think of this
10 reflectors =$1000
10 ballasts = $1000-1200
bulbs =$800-1200
Electricity for year $1200
Extra cost to cool the tank
extra cost to cool the house in the summer
initial cost aprox $3000
yearly operating costs aprox $2000
Have you ever thought of LED, I guess the new models are suppossed to be amazing