All my SPS turn Green with time! Please help!

[Biglurr54]

I need some help getting certain colors out of my sps corals. Most of the frags I buy have different colors (primarily yellows, orange, gold, and some reds) when I purchase them and then after a few months in my tank I get great polyp extension and growth but all the colors tend to shift green. (I have two Walt Disney frags that were nice and orange/gold when I got them and they are now green. I have an orange passion that had nice color when I got it but now it has shifted to green. Ill post some pics of these when I get home.)

They system is a 175 cube with 400w halide (radium) with LED rb and uv strips. Most frags are in the 300-400 par range. I have a calcium reactor and a kalk reactor. I dose Amino acid daily. I use a fuge with chaeto and a skimmer for nutrient control. I have high nutrients. I do automatic water changes (2.5 gallons a day on a 210 total volume system).

Salinity: 35
Temp:78
Ph 8.28 to 8.4
Alkalinity: 8.4
Calcium: 450
Mag: 1380
Nitrate: 25-50 (tough to read Salifert)
PO4: 0.20 (slowly lowering)

I ran an ICP test and found a few things are low and I assume its from the fuge. Im not sure how to dose the trace elements back up because I cannot test for them. Is there any recommendations on what to dose? Also are the depleted elements the cause for my green corals?

I have attached my most recent ICP test.

 

[Biglurr54]

Pics

 

[SeaDweller]

how long is your photoperiod? I initially thought you were running LEDs, but obviously not. also thought of low par, but that doesn't seem to be the case. For me, when I'm not running sufficient full spectrum or all blues, mine green out, but I'm running LEDs, so that doesn't apply to you. It seems odd to you're having some issues with your setup, perhaps it's the N and P levels

 

[spsick]

I would guess a combination of the high nutrients and the very blue slant to your lighting really encourage those greens to come out. The radium alone is a balanced spectrum but the extra single wavelength LEDs Aren’t. Getting the nutrients down more (mostly the NO3) will prob help a lot.

 

[Biglurr54]

The photo period is 8hrs of halide and 12 hrs of leds. The Leds ramp for the first and last hour. I figured the added light might bring out the additional colors.

I should also mention that I am using Instant Ocean salt.

I have always struggled with Nitrate and po4 levels but I have no algae issues so i dont want to chase numbers for the sake of chasing numbers.

My Chaeto has stopped growing even with the high nutrients from what i believe is a element deficiency (see the above ICP). I am going to start dosing some Chaetogro to hopefully combat that.