3 Radion xr15's over 6ft 150 gallon?

jeffrey750750

Reefin in the slow lane
View Badges
Joined
Feb 26, 2020
Messages
1,280
Reaction score
3,442
Rating - 0%
0   0   0
hello, I watched numerous videos from brs and searched here on this subject. The tank is a 150 gallon, 72" long x 18" wide x 29" tall. It will be an lps, softy tank. Will 3 spaced out xr15's work just fine? I have a 60 gallon cube 24x24x24 now and have one gen 4 xr15 and that seems to be more than enough. The only thing different is the 5 inches of depth. My current light is 9" above the water line. I'd rather buy 3 than 4 of course. Thanks
 

Camaro Show Corals

Formally known as The Camaro Show
View Badges
Joined
Mar 19, 2018
Messages
6,803
Reaction score
6,629
Location
Wheeling, WV
Rating - 100%
4   0   0
You really need the xr30s for that depth if you want any corals on the bottom 20%. The G5’s are far less powerful par wise then G4. They went for spread more then par with all the diffusion.
 
OP
OP
jeffrey750750

jeffrey750750

Reefin in the slow lane
View Badges
Joined
Feb 26, 2020
Messages
1,280
Reaction score
3,442
Rating - 0%
0   0   0
Or possibly do one xr30 in the center and 2 xr 15's on each side?

Screenshot_20200812-010325_Chrome.jpg
 

ReefBeta

Valuable Member
View Badges
Joined
May 26, 2016
Messages
1,318
Reaction score
1,433
Location
Seattle, US
Rating - 0%
0   0   0
I would start with 3 XR15 Blue, XR15 is better than XR30 for spread. Two of them give the same output as one XR30 and same reach, but you can separate them whatever way you want. Also you can always add more when you up your game. Most people don't run the light at 100% anyway. So if you mount them at right height and run it at 100%, you might have enough light for a mixed reef already.

But honestly the better investment is to get a par meter. It's only $300ish for a basic one. That will give you clear idea of the light is enough or not, so no more guessing or buying more light than you need.
 

Robertellis30

Well-Known Member
View Badges
Joined
Dec 2, 2019
Messages
546
Reaction score
497
Rating - 0%
0   0   0
I have 3 over my 300xl. It all depends on what type of corals your wanting to keep.
 
OP
OP
jeffrey750750

jeffrey750750

Reefin in the slow lane
View Badges
Joined
Feb 26, 2020
Messages
1,280
Reaction score
3,442
Rating - 0%
0   0   0
Using a par meter is the best way to go, I agree. Yes, you can always add another xr15 if need be down the road. Now to my next light issue, do I want the blue one? Lol
 

Larry L

Valuable Member
View Badges
Joined
Nov 4, 2014
Messages
1,348
Reaction score
1,432
Location
x
Rating - 0%
0   0   0
I'd go with two Kessil AP9x (2 x $900), they have almost perfect spread for a 3 foot wide tank and probably plenty of PAR for LPS at 29 inches deep. Check out the BRS video.
 
OP
OP
jeffrey750750

jeffrey750750

Reefin in the slow lane
View Badges
Joined
Feb 26, 2020
Messages
1,280
Reaction score
3,442
Rating - 0%
0   0   0
I'd go with two Kessil AP9x (2 x $900), they have almost perfect spread for a 3 foot wide tank and probably plenty of PAR for LPS at 29 inches deep. Check out the BRS video.
I watched it, they tested the light on a 24" and 48" tank. It looked like a pretty nice light. Thank for the info, I'll do more research
 

dtrick

Active Member
View Badges
Joined
Jul 22, 2020
Messages
124
Reaction score
141
Location
Florida
Rating - 0%
0   0   0
I have a thread with PAR readings for an XR30 and XR15 Pro over a 3ft tank. My tank is not as deep as yours but my PAR readings are only at 40 and 60%. This might give you a good idea of how a mixture of XR30/15s will work for your tank.

 

CollectOyster04

Active Member
View Badges
Joined
Jul 25, 2019
Messages
142
Reaction score
276
Location
Oklahoma City
Rating - 0%
0   0   0
I have a standard 6ft 125 gallon tank(same dimensions, just not as deep), and was told that 3 xr15's (gen 4) would work for what you want to have. I started with the 3, and chose to get a fourth. With the center brace in the way, I liked the look having 2 on either side evenly spaced without having the brace create a shadow in the tank. I'm trying my hand at a sps dominant, so I also added diffusers and an aquatic life T5 hybrid(61"). To me, there was nothing wrong just having the leds, but after much reading and much consideration I decided to add the T5's for what I wanted. I have my lights at about 8" above the water.
 

ReefBeta

Valuable Member
View Badges
Joined
May 26, 2016
Messages
1,318
Reaction score
1,433
Location
Seattle, US
Rating - 0%
0   0   0
With that being said, I think I'll get 4 xr15's or three. The top of the tank has two cross braces so I won't be able to evenly space them. I'd rather do this right the first time

With the brace, I'll go with 3 XR15. And in the future if you find yourself needing more, add T5 or led bar as supplement.

I'm building a 180 gallon that also have two braces. I'm going with two XR30 on each side and one XR15 in the middle, for a SPS dominate setup. Also planning to supplement with Orphrek led bar later.
 
Back
Top