Help me choose between Dual-lights or Single for LPS tank

[SirHealsALot]

Hey everyone, I'm setting up an Lps majority tank and wanted to get your opinion on single AI Prime or Dual Primes. Attached are the PAR ratings for my tank with Single module turned to 100% and Dual Modules turned down to 35%.

I guess with single module, I may be able to add SPS in the center later on but corners are very dark. Also, what is an appropriate amount of PAR for LPS corals?

 

[Billldg]

You will get many different opinions on this, but for LPS between 60 to 120 will work well. As I have changed my tank over to a SPS dominant tank I have par readings on the sand bed in the 200 range and certain LPS seem to like it. They just have to be acclimated to it. I have noticed that at the higher par range LPS seem to change color though.

The harder thing to do is to have par uniformity across the tank. The more lights you have the more uniformed it will be and less hot spots. That's why I switched to a hybrid system with T5's and LED's

 

[SirHealsALot]

You will get many different opinions on this, but for LPS between 60 to 120 will work well. As I have changed my tank over to a SPS dominant tank I have par readings on the sand bed in the 200 range and certain LPS seem to like it. They just have to be acclimated to it. I have noticed that at the higher par range LPS seem to change color though.

The harder thing to do is to have par uniformity across the tank. The more lights you have the more uniformed it will be and less hot spots. That's why I switched to a hybrid system with T5's and LED's

Thanks for the insight. That being said, which of the 2 PAR charts would you choose?

 

[Billldg]

For LPS, the left picture.

 

[Zach W]

I would vote for 2, I have mainly an SPS tank but several LPS as well. A lot of mine are in the 200+ par range (acans/torches/hammers) and look great! Two also helps with shadowing like you mentioned and will help future proof if you decide you want more LPS!