How many A.I. prime hd do I need

[Nickflyline]

I have a 75 gal 4 foot long tank I’m thinking of using A.I. prime hd lights how many would I need? I would to keep my opinions open as far as what I would be able keep. I’m thinking some sps maybe an anemone or hammer along with some zoas possibly even a clam. I know I can start off with two for low light corals but on the higher light needing corals how many do you guys think I would need. Thanks

 

[LesPaulPlayer73]

I think BRS has a nice video using Primes on larger tanks. Maybe start there.

 

[Tommy Ngo]

I would say 3


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[APX90]

4 would be ideal for sps i would think but any particular reasons you want to use 4 primes over something like 2 26s? or even 2 xr15 pro?