Were to place I have it on top of tank for a year will not color up. I have 50 + other arcos that are fully colored up. Should I move it down. Alk 7.75- 8.0 Cal 460 mag 1400 phos 0.2 nitrate 0 Tank size 125 sump 40 breeder lights reefbreeders x4.

Ok yeah when I read 0.2 I thought that may have been a mistake. I like numbers like that but only if you can feed a lot, add aminos etc and still keep them there. If the food etc raises them a bit still no worry, those are low numbers. You may also be hitting it with too much light if it is at the top. That, plus low nutrients, will make for a very "uncolored" acro.
I do not have very intense lighting over my tank. The Pearlberry is maybe a little over halfway up.
Here is a recent pic of mine
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Ok yeah when I read 0.2 I thought that may have been a mistake. I like numbers like that but only if you can feed a lot, add aminos etc and still keep them there. If the food etc raises them a bit still no worry, those are low numbers. You may also be hitting it with too much light if it is at the top. That, plus low nutrients, will make for a very "uncolored" acro.
I do not have very intense lighting over my tank. The Pearlberry is maybe a little over halfway up.
Here is a recent pic of mine
![]()
I was just talking about this the other day at my LFS. This is the only coral in my tank that won't color up or grow. I've placed it in different places in both my frag tank and DT wit no luck. So weird