you don't have to replace the flourescents every year. I have some T8s (5000K) that are still growing plants well after 3+ years of 12 hour a day usage. They had been used to light an office for 6 months before I got them.
Join a fish club. Don't have one in your area? Start one.
I had non aquarium bulbs on my tank made my fish look crap tbh so want proper lights either proper aquarium LEDs like I've seen the fluval plant and fish ones or the arcadia stretch lights as it's gonna be a 4footer would prob get 1 of the arcadia. But I did like the fluval as it goes blue for the night