Number one you're a noob and don't want to do your own research because you could pick up a highschool biology text and learn what co2 does for plants. Basically it takes in the CO2 breaks it apart, the takes the water it absorbs and breaks that apart then puts it all back togather using the energy from the lights to form sugars and the left over is "exhaled" as O2.
With the lights you have it could be benificial to use additional CO2, but you could also waste alot of time and energy. When you start a set up you need to allow enough ventilation and fans to draw fresh air in and move old air out, which would also drag out your added CO2 making it useless. So you need to find the happy balance so your plants have enough CO2 to make sugars as well as enough O2 for them to breath since they still need O2 to function. Then you need to figure out what to do during the dark period because without light there is no photosynthesis so there is no need for CO2, and O2 is needed for the plant to stay alive.
So if you think you know enough to set up an effective CO2 set up by all means. BUT DO YOUR BASIC RESERCH FIRST, especially when it is something a 6th grader can explain to you, or ask the right questions.
We had to do our own leg work time to do your own.