help with SPS colours

[Pondweed]

I'm looking for a bit of help on my SPS colouring up. At the LFS as well as the local guy I bought them from they were much more colourful

Alk - 8
Cal - 430
Mg - 1400
Nitrate 10
Phos 0.04

To me i think my params are fine, I've read SPS being a bit darker brown can be from nutrients or lack of light so just seeing if there is anything else you can think of?
Params also very stable, tank has been moved recently but I had this problem before the move and it was there for 3 years.

Tank is about 2.6x2x2
Lights
1x AI Prime
1x Coral box moon LED
1x Orphek OR2 blue bar

Flow 1x icecap gyre 1x RW 15 1x random tunze pump
10k LPH return pump running at about 55%
I'm pretty sure this is plenty of flow

Dosing the old ATI essentials range, getting really good growth across SPS LPS and softies, just the SPS colours could be better

Any ideas?

 

[Mhart032]

It could be the prime, i had a prime on a roughly same size type tank, with 2 mp10s and 520gph return pump, so i know it wasnt flow as well. how long have they been in the tank? they take some time to get used to the new chemistry and lighting. I quickly upgraded the lighting to a radion and had better results, some people do have good results with the prime HDs i just didnt.

 

[SeaDweller]

how old is the tank? Have you tested for par, if not, I'd think it's your lighting; might not be strong enough/providing the correct spectrum.

 

[CivicS14]

From my personal experience - pale is either being too much light and/or not enough nutrients and brown being not enough light and/or too much nutrients

 

[ycnibrc]

Tank 2.6x2x2 then your ai prime is not strong enough. May be right under the light is ok but u need something stronger. Get a xr30 g4 pro since its much cheaper now since g5 is out.

 

[Pondweed]

Been in there about a year, still growing but kind of slow compared to some comparisons on here. I've been upping the time on my OR2 bar to add some more light.

In it's total life the tank is about 7 years old but only had SPS for the past 3, tank has been moved maybe 4x now so I'm pretty over moving.

I suppose the weird part is my 2 acros, and the montis are light in colour. The polyps are super vibrant but the skin? or base whatever you want to call it is quite pale

The millis on the other hand are the browner ones, still getting really vibrant growth tips on these

Think I'll add another orphek bar soon and see how we go

Will edit main post, the AI prime isnt the only light
1x AI Prime
1x Coral box moon LED
1x Orphek OR2 blue bar