You should definitely consider pressurized co2. When you are talking that many watts over a tank that size, algae will be present. Reaction co2 will not yield much production, and you will likely need 3-6 2 liter bottles running of reaction co2 to get the needed amounts of co2. The lights you have would be better off sold, and a standard 65W straight pin setup purchased. I only pay $20 for each 65W 6700K straight pin bulb, and $24 for each 65W 6700K square pin bulb. The actinic is the biggest problem, but your 10,000K part to the lights will not provide the optimum growth for plants. Think of it this way... 96 watts of your bulbs is applied to algae growth (actinic) the other 96 watts will be applied to both algae and plant growth. The odds are stacked against you with the bulbs you are using.