SPS - Faded Colors (Potassium?) Long...

karsco

Member
First off sorry this is long winded but I want to give you some background info. I have never ever had this problem before but I cannot figure out my faded out SPS colors. This is especially effecting my monti caps, birdsnests and few acros. My LPS, softies, most of my acros are all doing well and have pretty good color. All fish are fat & happy and some are even breeding.

A little background on the tank it is a 150G custom cube, Vortech MP40 pump, Quiet one 3000 return pump, Itech cone skimmer, dual BRS phosphate reactor run BRS carbon & phosphate remover and has been set up for almost a year. The lights are a 6 bulb T-5 on the front half of the tank and a 250W MH Radium with LB reflector on the back half.

Tank Params:
Salinity 1.25
Temp 77 degrees
Calcium 450
Alk 8.5
Mag 1330
Phosphate 0 (Hanna digital)
Nitrate 0

I use two part (BRS, with dosing pumps) for alk & calcium supplementation, also add some Kent products (Coral Accel, micro vert, etc.) My colors were pretty good for the first 7 months, but then I ran into problems. The problems seem to have started when I started using Brightwell BM7. After using it for about a month the colors were getting even better. Then I had a little bleaching incident with the monti caps, (it was a few spots here and there on the caps) and my Miami Orchid Acro colony bleached a litlle bit on the tips. After that the corals in question began to fade. So I did some homework and thought it may be a potassium issue, so I stopped dosing BM7 and got a Potassium test kit and found that the potassium levels were around 200 PPM, so I started adding K+ (for about a month now) and the levels are now around 300 PPM. Still low but I am taking it slow, everything has stabalized and the burnt tips on the acro have grown back but all my encrusting & mont caps colors are blah, it is also effected my ORA red planet, ORA Borealis, ORA Joe the coral all very muted in color.

So do I just be patient keep getting my potassium levels up or should I do something different? Thanks for any help!
 
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just a quick shot, lack of food.. either feed more, add more fish or start adding something to "feed" them..
 
i would have to say that you need to start feeding more. or add AA. sounds like you might have gotten your tank to sterile.
 
Starf, I thought the same thing. I have alse been adding these Kent products for the last few weeks: Kent- Cora Accel, Coral Vite, Zooplex, Phytoplex, Essential Elements, and I am also adding K+ for potassium. Maybe it will just take time for these supplements to take hold.

In my previous tank (very low budget) I just dripped Kalc and used Tropic Marin Buffer and my SPS colors & growth were great, maybe I need to dump all my high tech gear (dosing pumps, controllers, wavemakers) and go back to ghetto tank!:mixed:
 
BEFORE pics, about two months ago:

Orange Monti upper middle, encrusting monti lower right:
IMAG0020.jpg


Pink Birdsnest:
DSCF4656.jpg


ORA pink lemonade frag center of pic:
DSCF4651.jpg


Encrusting Monti:
DSCF4432-1.jpg


Miami Orchid:
DSCF4523.jpg


Random pic that I thought was cool, haha
DSCF4643-1.jpg


I will take some current pics later tonight....
 
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Here are some AFTER pics, I could not find my macro lense for my camera so these picture are not good.

Full Tank shot:
DSCF4658.jpg

The birdsnest upper right is very light pink, bottom right encrusting monti is very, very light.

Light Pink birdsnest (used to be vibrant deep pink)
DSCF4698.jpg


Rainbow Monti, super light with orange polyps. Used to be deep green & orange.
DSCF4677.jpg


I also retested some paramaters since I was going by memory from a week ago:
Calcium 400
Mag 1390
Phosphate .25
Alk 9.5
Potassium below 200 again...

Everything else was the same, It looks like I need to bump up my potassium and start dosing everyday.
 
Looks like your corals need to be fed more now that you have a ULNS. Feed the fish heavily, maybe twice what you normally feed but spread out the feeding over the day. Also start dosing AAs of some kind to the tank. I like Fuel by AquaVitro/Seachem or the original Seachem AAs, they are cheap and work well.
 
Try to get the kalium (potassium) up to 390-400 yeah for sure +1 with feeding more and adding aa's I like the zeovit aahc you might also try to add iron in small amounts also the pif (potassium iodide flouride) and sponge power. you might want to turn off your skimmer a few days out of the week and reduce the photo period and feed the fish more. your just going to far into the clean direction and need to supp./feed the tank more.
 
Thanks everyone for the input. I will try cutting my photo period down increase the potassium, add aa, and turn off the skimmer for a few days. It's hard to believe your tank can become sterile. Back in the day 20 some odd year ago when I was running an undergravel filter & a power head it was far from ULNS! :spin3:
 
Thanks everyone for the input. I will try cutting my photo period down increase the potassium, add aa, and turn off the skimmer for a few days. It's hard to believe your tank can become sterile. Back in the day 20 some odd year ago when I was running an undergravel filter & a power head it was far from ULNS! :spin3:

AHHH... yes, I remember those days as well! My reef keeping goes back to the early '80's!
 
I seem to be having a similar issue myself although not running any type of carbon dosing... just a big system with low bio load and strong nutrient export through a very efficient skimmer and fuge with sandbed. My Birdsnest completely bleached and most SPS has poor polyp extension and just look drab. I've also got some tip tissue loss on some of my acro's and a piece of pocillopora. Are you seeing any tissue loss on the tips? My parameters are all ideal. My ORP is showing >500 but feedback in the chemistry forum seems to be pointing to a defective probe. See my thread here for more detail...

http://www.reefcentral.com/forums/showthread.php?t=1924125

I just ordered a D&D P04 test kit for better resolution since I just see < 0.01 on the Tropicmarin kit. I also ordered a Salifert Iodine test kit since I came across someone who had similar issues and found Iodine was way down.
 
Oldtimer,

Yes I did loose some tissue on the tips of my Miami Orchid Acro, my Joe the Coral acro when this first started. Once I started dosing potassium this stopped and the damaged areas grew over and are back to normal. Correct me if I am wrong but aren't Iodine & Potassium interconnected?
 
Tqpolo, that is just a recent phosphate reading since I took my Phosphate reactor offline due to the coral "issues" when I am running it 24/7 the phosphate readings stay at zero...
 
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