Fading colors in my LPS

Catra2030

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I seem to be having some lps corals as well as a few softies that are losing their color. It seems to be primarily the reds, but I've started to notice a few greens fading as well. As of now, the fading is not limited newer additions, but both newer additions and corals that have been in the tank for 10+ months. If anyone could throw some ideas at me that would be great and I will try to give every detail possible below to help.

The tank is a standard dimension 125 gallon 6-foot tank. Its been setup for about 13+ months and is currently a mixed reef tank with various corals, mainly lps and a 3 fish. I'm not heavy on the fish at the moment but rather corals, chalices and favias in particular. The sump is a 40 gallon breeder with a small section for frags and other corals, also containing the skimmer rated at 200 gallons.

Parameters: Alk 9.0 stable, Ca 420-440, Mg 1400, Sal 1.026, PO4-0.00, Nitrates 0ppm, pH 8.0-8.2. Alk and Ca are controlled by 2 part system on auto dosers and water levels controlled by a ATO system. Magnesium is dosed when needed but mainly controlled through water changes. 10-15 gallon water changes are done weekly or bi-weekly with all parameters matched and let sit for 24 hours, Reef Crystals salt.

Lighting; main display is covered with a aquatic life 72 inch t5 4-bulb fixture, running ATI aquablue special, geisemann 6500k and two aquatic life 420nm blue bulbs. The sump light fixture is a 24 inch aquatic life 4-bulb t5 fixture with 2 10k bulbs and their 420nm blue bulbs.

Circulation; 2 vortech mp40's, a magdrive 12 for return from the sump and a canister filter running carbon.

Tank inhabitants; 1 kole tang, 1 mystery wrasse, 1 jerk of a 6-stripe damsel. Softies include a football sized toadstool, a few mushrooms, 4 zoa colonies, 4 paly colonies/frags. Lps include 22 favia/welso/lobo colonies/frags, 3 fugias, 14 chalice frags/colonies, as well as various snails and hermits.

Other notes; all coral are dipped with coral rx before entering the tank, a feed sparingly, and when i do, I've been using brightwells zoo and phyto mixtures as well at dt's live phyto mix. I usually broadcast feed and maybe spot feed twice a month. I sometimes spot feed with mysis shrimp. Fish are fed daily with mysis and seaweed.

My thoughts are that I can chalk this color fading up to either a lighting issue or feeding issue. I currently have a plate coral that started out as a blood red coral and faded to a light pink over a 4 month period. I have it in the frag section and I am spot feeding every night with mysis and I have noticed a small change in coloration as it is starting to come back. I can't help but overlook that this could also be a lighting issue, and maybe i need to upgrade to a 6 lamp fixture.

Let me know what you think and I apologize for the long post but giving every detail will only help and if I have left anything out I will surely add it. Thanks for you time and I look forward to any help.
 
Sounds like the set up is good. Usually I would attribute the colors fading in lps to too much light but I doubt a 4 bulb fixture is causing that. Feeding would be my next guess, maybe someone else has an idea
 
It very well may be the lighting, 4 bulbs isnt a whole lot for a 125 I had 6 on my 55g :) lol, I cant see problems with anything else your parameters are all good, do you keep any sps?
 
I do not keep any sps, i hope to in the future, but that would be after updating my lighting as well as giving the tank some more time to mature even more than what it has, thanks for the reply
 
All parameters are tested with red sea test kits as well as salifert test kits, kh tested daily but only tweeked if neccessary and very slowly over a large period of time.
 
Could be params, but your bulb combo sounds off. I have an ATI 6 bulb and have tried all different kinds of combos. 4 Blue Plus, 1 Aquablue special and 1 Fiji purple or Purple Plus works for me.All LPS have a rich color. With a 4 bulb id personally go two Blue plus , 1 ABS, 1 Purple Plus
 
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Welcome to R2R.

Maybe you are too low on nutrients. More fish = more color, within reason. I would add some more fish and feed well.
 
Do you dose lugols iodine? I had chalices fading and I started dosing lugol's once a week and stared getting color back. I then shaded them and realized LPS don't need as much light as I assumed and they colored up nicely for me.
 
+1 on too low of nutrients possibly. Where exactly is all of the suffering corals mounted?
 
Do you dose lugols iodine? I had chalices fading and I started dosing lugol's once a week and stared getting color back. I then shaded them and realized LPS don't need as much light as I assumed and they colored up nicely for me.
Really depends on the water you use. Different salt brands have extreme differences in levels. Some need to dose, some are better off not dosing Lugols.
 
I use red sea coral pro and it probably doesn't need to be dosed but I do 4 drops in a 120 gallon once a week so not sure if it's really doing much. My main point is that the corals might be getting too much light.
 
thank you for all the reply's. I do not dose lugols at all, but I have been reading and I seem to be noticing a fair amount of people that are dosing lugols a few times a week or a few times a month. As for my lighting, I previously had 2 aqua blue special bulbs but I switched in the GE 6500k bulb. I currently have 2 aquablue + bulbs coming, and will replace the aquatic life 420 bulbs. The corals that are losing color are anywhere from the sand bed to the top of my live rock. I have yet to really see any chalices losing color although the pink in my watermelon chalice is a little off and I have moved it to a shaded area to see what happens. I am currently target feeding my faded plate coral and each day I notice a little more color which leads me to believe I'm having a nutrient problem, but I'm still not ruling out the fact that the lights may be adding to the problem. The only reason I'm leaning towards the nutrients versus the lighting is that all these issue started after I removed the refugium section and made it a frag section in the sump plus the lighting really hasn't changed since I started the tank. Also, as for the bulb combo, I'm not to fond of the look a 6500k bulb give the tank, but I wanted to try a grow bulb to see what happened, but right now I'm looking for great true coloration and I may switch out the 6500k bulb for the aquablue special again. Sorry for rambling on and thank you again for the replies.

Also, any thoughts on picking up some brightwells amino acids or the red seas reef care products to feed? Let me know what you think. thanks
 
In my experience LPS do not like the daylight spectrum of light. I wanted to get some good SPS growth one time and changed my MH to 10k bulbs and ALL my LPS faded. Even the ones I had shaded. Now I only run 14K with a LOT of actinic and the colors are wonderful. I would go with 2 blue+, 1 purple+ and one aquablue special. That is the combo I have on my 125 (even though I have a 12 bulb fixture) that is lit with only T5 and the colors are great in there too...I hope that made sense....
 
If i ditch the daylight bulb and go with 2 blue+, an aquablue special and a fiji purple, will this be enough light for lps growth wise. Also, with the aquatic life fixture, 2 bulbs are on each timer, so I'm thinking a blue+ and fiji purple come on, then my high lights come on being the aquablue special and other blue+, am i right or should i do the blue+ on then the aquablue special and fiji purple on together as my high lights?
 
Does the aquatic life fixture have good reflectors? 4 bulbs is enough provided it has good reflectors. I know I have a 4 bulb fixture that definitely doesn't put out enough to grow corals, its over a fish tank
 

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