the best thing i ever added to the tank was a finnex 24 hour led light. it is super.
I have an old school T12 two tube 48" in GE aquarium spectrum. I then have RGB 5050 led strip run down the center of the two tubes that acts as the night light set dark blue dim. Currently running 8 hour lighting as we started to see some alga at 10.5 hours and my coontail was getting out of control.
Cheers Don.