T5 lighting for 75 gallon tank

[Betta-Chetta]

Alright i was wondering what size would you recommend for my 75 gallon. Would yall recommend a 4 bulb or 6 bulb and why?

 

[FrankAbagnale]

I can only say what I use. I have a 36" 6 bulb T5 and I supplement with 2 Kessil 160's.

What are you planning on keeping?

 

[Betta-Chetta]

Well right now I have a current usa orbit. All my softies and LPS are doing great but aren't growing. The one sps ( birds nest) is bleaching but polyps still come out. I'm just trying to figure out what is the best light for maximum growth of my corals. On my 29 gallon I had a 4 bulb t5 and all my corals did great except my sps they always bleached.