Radions for 36" tank

[d3vhound]

About to pull the trigger on a waterbox 100.3 (36"x24"x22") and thinking about how many radions and which sizes. For an SPS dominant tank am I correct in thinking I'll need 3x XR15s? I think 4 is overkill but 3 spaced out might solve any shadowing I have in the future. I could also go 2x XR30 but that's a lot of light for a 3 foot tank.

 

[a4edwin]

I would say go with 3 xr15’s you can play around with the placement if you have to.

 

[Nburg's Reef]

I think the 2 XR30 mounter perpendicular might be better in the long run because they will light more of the deeper depth to that tank (front to back). 3 XR15s will certainly do the job at first, but when the SPS colonies get thick with branches there will be more shadowing compared to 2 XR30 mounted perpendicular since the XR15s are narrower.

If it were me, I would maybe go 2 or 3 XR15s and introduce T5s now, or when the growth gets thicker.

 

[Oberst Oswald]

I have a 36" tank. I use 2 Radion XR30's which are ideal for SPS.

 

[adrianr514]

Two 15s. Once the sticks start growing in add two more.

 

[ReefDuke]

I have a 36" tank. I use 2 Radion XR30's which are ideal for SPS.

Have you ever measured par?