Trying to decided on lighting. Running fresh and plant 2.0

Im trying to decided on lighting. Im currently running a Fluval fresh and plant 2.0 on my 75 gallon long. I have been debating on whether or not to add an additional 48" fixture or if i should try out pendant lighting. The pendants are between the kessil 160a/360a series or the aquatic life halo fx series. Im not sure if i should even run more as my plant seem to be doing fairly well with it at max.

Tank is co2 injected: substrate carribsea flouramax (original type that is basically flourite):
Filtration fluval fx 6 with diy spray bar aqueon 500
circulation pump (had 2, but one broke recently)
E.i. dosing method for 60-80 gallons.

This is my first co2 injected tank. It has been running for nearly 2 months. ive had ups and plenty of downs, but now that things are becoming more stabilzed i would like to increase lighting and try some plants that may require higher light,or i.e. the ludwigia rubin is not coloring up as nicely as i would prefer it, and the ar mini has had its fair share of trouble shooting to get growing well.

Anyways, hope you guys have some input and enjoy, heres a recent pic of my little mess of a tank =]

Thanks Jsin.