Some Corals Receding - Please Help

coralcrazy · Mar 13, 2014

Hi All,
Over the last couple of months I have noticed that some of my corals are receding and I can't seem to figure out why. It started with some of my Acan Frags, which have all died, my scoly and a big chalice I have.

They are just slowly withering away.

I have a nanobox led light and two mp40s on opposite end of my 72" tank.

The scoly is on the sand pretty much dead center of the tank and the chalice is very low to the sand all the way to one side. I have dipped the corals in both coral rx and iodine but nothing is slowing the receding. I have alot of other corals in the tank, lps, sps, and softies that are all fine.

I tested my water last night and this was the results.

pH: 8.3
Cal: 440 ppm
Alk: 175 ppm
Mag: 1280
Phos: .02
Ammonia: 0
Nitrate: 0

I dose esv two part daily (40 ml split up 4 times a day).

Could my water be to clean for those corals?

Any ideas or thoughts?

Frag freak · Mar 13, 2014

How often do you do a w/c?

%?

Testing water params how often?

Were you feeding them anything? (Acans)

How often do you feed the tank?

Could be to clean...could be swings effecting them.

Tank temp? Are you running an ato or topping daily or what?

coralcrazy · Mar 13, 2014

Frag freak said:
How often do you do a w/c?

%?

Testing water params how often?

Were you feeding them anything? (Acans)

How often do you feed the tank?

Could be to clean...could be swings effecting them.

Tank temp? Are you running an ato or topping daily or what?

I do weekly water changes of 15 gallon of RO/DI Salt Mix (Red Sea Coral Salt Pro).

I test water params. 2 times a week.

I was feeding mysis once a week to most of my lps. I also just started using Reef Frenxy Pellets.

I feed my tank every other day with either mysis/brine. I usually put a small sheet of nori once a day for my herbivore.

Tank is 78 degrees Fahrenheit and I have an ATO connected to my apex system.

Things done really swing much in my tank.

Frag freak · Mar 13, 2014

Hmm if your feeding the tank every day I doubt the water is TO clean. Unless you have some "bananas" (crazy) filtration setup.

Did you change lights recently?

coralcrazy · Mar 13, 2014

Frag freak said:
Hmm if your feeding the tank every day I doubt the water is TO clean. Unless you have some "bananas" (crazy) filtration setup.

Did you change lights recently?

I did change from t5 to led. But the receding happened during the t5 period.

bearjohnson · Mar 13, 2014

What intensity are you running the LED's?

coralcrazy · Mar 13, 2014

I am using the storm x controller. Whites at 1500 blues at 2500. It's on the lower side.

Frag freak · Mar 13, 2014

Well its either water quality or lighting.... I dont run that fixture so I cant speak on it.

Does the chalice have enough flow? I know your running the mp40s but I have no clue what setting or where the coral are in comparison to its flow. A mild flow is plenty...idk if you have to much flow either....

(just speaking outloud)

coralcrazy · Mar 13, 2014

Frag freak said:
Well its either water quality or lighting.... I dont run that fixture so I cant speak on it.

Does the chalice have enough flow? I know your running the mp40s but I have no clue what setting or where the coral are in comparison to its flow. A mild flow is plenty...idk if you have to much flow either....

(just speaking outloud)

Yes I have the chalice in a low flow area. I am kinda perplexed.

Frag freak · Mar 13, 2014

Me too lol
so your alk mg etc are all pretty solid? Dosing to much maybe?? Was it after you set your doser up??

coralcrazy · Mar 13, 2014

Frag freak said:
Me too lol
so your alk mg etc are all pretty solid? Dosing to much maybe?? Was it after you set your doser up??

I split the dose up throughout the day. I have tested in morning and night and I'm not seeing large swings.

Frag freak · Mar 13, 2014

To much/little iodide??

coralcrazy · Mar 13, 2014

I don't dose or have a test kit for that.

TrialandError · Mar 13, 2014

For the chalice try moving it up a little bit and getting it in a little more light. I have most of my chalices on the top of my rocks in heavy flow and strong lights and they are happy as can be. Not typical I know. For one of my more picky chalices I have it in the sandbed but have eggcrate holding the plug up off the sand a bit and it gets decent lighting. I had it in a different spot more in the shade and less flow and I almost killed it for like the 3rd time. Sorry can't be more helpful. If it's receding already can't hurt to try putting it in different spots to try and save it.

Don't know a thing about a scoly though.