Help. SPS turning green

[Aktric1]

Hi R2R family.

I am new to the sps world and I’ve noticed some of my sticks Turing a florescent green at the base or the tips. I’m running t5 /led hybrid at 12 hours a day t5 for 9 of those hours. My numbers are kh 8.0 mg 1410 ca 470 phosphates 0 temp 79 degrees. I dose a verity of KZ products and use Red Sea pro foundation ca kh mg. I use tropic Marin pro salt at 1.025. The first photo is a OG garf bonsai the second TGC strawberry and the third is a deep purple all of which should have zero green color. Thanks for all of your help

 

[Camaro Show Corals]

What Leds are you running? Normally green is to little light and/or to high of nutrients. Phosphate affects growth not color and you should have 0.1-0.08 of po4 I personally run mine 0.10 and grow a lot of high end sticks every time I have tried to get it low I get stn. What are your nitrates? Nitrates affect color dramatically! Aim for 5-10 nitrates

 

[Charlie’s Frags]

Hard to tell from those pics. I don’t see anything concerning but it’s important to know that sps, especially acropora will have some color shifts when introduced to new environments. Also frags are typically cut at the tips, which usually have the most color, but later on what used to be a tip becomes a base and that usually has contrasting colors from the tips. I would not be too concerned unless they start darkening, retracting their polyps or start looking “dried” out. Those are all usually signs of stress that will lead to tissue necrosis.

 

[Aktric1]

I’m running two blue plus 1 actinic 1 purple plus. I’ve never tested nitrates but I’ll go grab a kit today and post numbers.

 

[Hemmdog]

Are you dosing trace elements? Iron overdose can cause this as well.

 

[Aktric1]

Unfortunately I’m unable to get a really good picture right now, seems impossible at times you know. The best I can describe-it as is a fluorescent green, almost shiny I have it at the base of two different frags and at the tips of two others.

 

[Aktric1]

Nothing other than what you see here

 

[DarkSky]

In addition to the two answers above (iron, high nutrients), excess actinic lighting can cause acros to overproduce green florescence proteins. You said you're running two B+, 1 Actinic and 1 P+, this could be causing some green shift in your acros.


I am having some of the same shifts in my tank too - I run an 8 bulb T5 fixture, and 4 of my bulbs are actinic.

Read more about it here.

 

[DarkSky]

Nothing other than what you see here

Two of those bottles are trace element additives. Maybe lay off the trace supplements until you're testing for them and can verify that you need them. You can verify that excess iron is your problem by sending out an ICP test.

One of the best tips I've ever received in this hobby was to never dose for something you don't test for.

 

[JustAnotherReefer]

par has a big issue with coral color too.

low par can bring out multi colors in otherwise solid color corals. PC Rainbow for instance is super red under high par, and multicolored under the lower par levels

 

[Aktric1]