SPS colors washed out please help!

andyvalk

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Hello everyone. Let me start with the parameters which are all very consistent:

Temp 78-79
SG 1.026
Alk 8.5dkh
Calc 420ppm
Mag 1350ppm
pH 7.8 - 8.0
Ammonia, Nitrite, Nitrate - all undetectable
Phos 0.01 - 0.02ppm Hanna Checker - can vary slightly but probably due to the nature of the test. I have zero algae to speak of.

Equipment:

60 gallon cube
2 vortech MP10's
Reef Octopus XP1000SSS
Lights are 250w Radium 20k on a M80 (magnetic/proper for the bulb) ballast. In a Lumenbright Mini, 15" from the bottom of pendant to the surface of water (as required). There are no other lights. Photoperiod is now 6 hours.

Livestock:

One purple firefish
One yellow watchman
One starry blenny
Various inverts

Feeding:

1/4 or 1/2 cube of spirulina or mysis a day
2 drops of Elos Amino Acids (I started this a few weeks after the addition of SPS. Details below)

Problem:

None of my corals have great color. Some are only above average, while most are washed out. In my last tank I had LPS under 4x24 ATI powermodule with all ATI bulbs. The colors were awesome. I had various chalices, acans, blasto merletti, and cyphastrea. I carried over some pieces into the new tank with the new lights.

Back in January, I got a new tank and the light I am running now. The prior tank was 24"deep as well. When I swapped the LPS (I didn't have any SPS), the colors faded, which I expected going from the ATI to the Radium. From January to April, the colors improved somewhat, especially on the Acans and cyphastrea, while the chalices and blasto remain very washed out almost a year later. I have all LPS on the sandbed right now.

I figured I just had too much light, and that they would adjust over time. I also figured too much light for LPS = good for SPS. So I bought a bunch of SPS frags from a local reefer with an amazing tank with great color. He is running 400w Radiums. In May I bought Grape Ape, Green Setosa, Pulchara, montipora Cebuensis, and ORA Tri Color.

He had them mid to high in the tank under 400w radiums. I initially put them low in the tank to acclimate them to light, but colors started fading immediately. Some turned brown, while other faded. I was told they were getting enough light, so I moved them half way up and some started bleaching at the tips. So I moved them some more. The crazy thing is I did this over a few weeks. I also was initially running a 10 hour photoperiod. Even though the corals all looked terrible, they were growing quite a bit at first, which stopped after a few weeks.

At that point, after a lot of reading, I cut my photoperiod to 6 hours while keeping everything else the same. After a few days, I noticed some pretty good improvements in color and saw some growth again. I started dosing Elos Aminos which helped as well. The improvements were happening so fast I was really excited, but then I hit a wall again. The colors went from horribly faded and washed out, to just faded and washed out, with some looking ok. Also, growth stopped again, despite having consistent alk, calc, and mag levels and no changes to the tank.

About three weeks ago, I purchase a pink lemonade, red planet, rommels rainbow, 24k mille, and ORA tri color. I had thought maybe I had ruined my initial batch of SPS and they just wouldn't come back. I was hoping the new round would hold their colors. Well, the new round is doing ok, but some are starting to fade. The guy I bought them from had the SAME EXACT tank and light setup, and they only took a one hour trip. He said most of them would be fine mid to lower, except the Rommels which he said to keep up high.

Some of the ones mid to low have bleaching tips, while the Rommels went up high and started bleaching as well. The Red Planet is lower and seems to be good.



So the question is, what the heck am I missing here? I honestly cannot figure out what is wrong. Most people seem to have no problem with LPS on the sand in a 24" deep tank under a 250w Radium, and certainly SPS should be fine. But the LPS look bad, the SPS are bleaching. It really seems like it's too much light somehow. Is this possible? Any thoughts?
 
What would be the best way to do that? You mentioned feeding...I am getting a couple new fish this weekend, which should help. Are there any additives that could help besides the ELOS aminos?
 
What's your nutrient export? Gfo? Biopellets? Your phos is to low and your corals don't have enough nit/phos to grow. Try get into the .03-.05 range

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I use GFO and water changes. As far as the phos levels you suggested...can you point me to anything to read to support that? Not trying to be rude at all...I have just always read and thought that phos over 0.03 ppm was where growth stopped and trouble started. Thanks for your help!
 
Just wondering if the "bleaching tips" were actually growth?


Slow your roll..
 
I am pretty sure it wasn't growth but I could be wrong. The only reason is because on some of the pieces, not only was it the tips it was the entire piece.
 
I agree, you have to feed the tank more. SPS need very small amounts of p04 to grow. to say exactly. 03 is too tough, because just the tolerance in the test can put that anywhere between 0.0- 0.7. Just a bit of nitrate I believe also helps. Your starving your corals.

When you were dosing the aminos, everything was looking good. then you hit a wall. You probably reduced your feeding, or bioload; or maybe the additional growth now was outpacing itself again and the corals started to starve again.

Add a few small fish, and dont be afraid to feed them.
 
Last edited:
Seems like corals are starving. Get your phosphates slowly up into the 0.03-0.05 ppm range. A little nitrate reading say below 5ppm is fine. In order to do this feed your fishes more.

The thing is, with the likes of GFO, GAC, highly efficient skimmers and various bacterial supplementation, I think reef hobbyists are at the point where we now have a combined set of tools that can drive nutrients too low. Over the past few years I am seeing more and more threads like this one. I frequent many forums from USA, Canada, UK and Austrailia etc. so like the other poster, I don't have any scientific articles to back up what I say, but I base it on my own experience and from reading various threads such as these.

Your tank doesn't have much in the way of fish bio load either.

Most people with Radium 20k bulbs get very good colour. Your water parameters seem quite fine other than some of us suspecting that the water is too clean.

What kind of rocks do you have?
 
Thanks a lot guys for the help. It seems like the consensus is low nutrients. No need for scientific articles...I suspected that could be the case but I thought SPS would actually be ok under those conditions. I just had a hard time believing the nutrients were actually that low rather than a result of testing error or range.

The good news is I can skip my weekly water change this week! I will report back in a few weeks and let you guys know. Please feel free to comment in the meantime!
 
Off the train of thought, but do you possibly have red bugs? Hows polyp extension? I had these for probably a year or so and I couldn't figure out why the coral looked so poor, until someone suggested looking at my acros with a magnifying glass and there they were. Just a thought.
 
I did not see anyone respond back to the question you asked about phosphate testing kit. The only kit that I will invest money to test phosphate is Hanna checker. If you keep the bottles clean and let the reagent dissolve, it keeps accurate reading every single time down to two decimal places.
 
Polyp extension is pretty good except for one or two pieces. I will have to see if there is red bugs but I don't think there is.

As far as the Hanna Checker for phos...that is what I am using already.
 
I just discover the red bugs. My colors went from me staring at the tank all day to a faded memory of washed out colors. Maybe you can dose interceptor just in case. It's super easy and cheap. That way you can eliminate the chance. You situation sounds exactly like mine. Red Bugs are super hard to spot. It took a coral right next to the glass with them for me to realize I had them.
 
Interceptor seems pretty drastic unless you know you have red bugs. I suppose I should check again based on what you've said. Thanks for the help!
 
If you want to find out, just dip a frag that doesnt have PE in some Bayer complete insect killer, and see what falls off.
 

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