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alsnorkel
09/16/2017, 11:14 PM
One of my arco sps frags is bleaching. It was healthy yesterday. All of a sudden the bottom half is pale white. Everything else is healthy.

reefmutt
09/17/2017, 03:19 PM
One of my arco sps frags is bleaching. It was healthy yesterday. All of a sudden the bottom half is pale white. Everything else is healthy.

Sorry but there's really very little that we can do with this information..
Assuming it is not a statement but a question about what may have caused this, we need as much information about your system as possible: its age, all the equipment, all parameters, a picture of the tank and or the coral would help as well.
There are just too many factors that could cause rtn on a single frag.. not to mention the possibility that it was not doing well even before it made it to your tank..

alsnorkel
09/17/2017, 08:36 PM
I upgraded to redsea refeer 350 back in may. I moved the live rock from my old 30g tank to the new one. The tank cycled within a week. I have a few LPS, Monties, Chalices. All are healthy. This is the 2nd SPS frag i bought few weeks ago. The other SPS is fine. This one was fine until Saturday morning. I moved the rock where the SPS was planted since the Anemone was close to it. I am suspecting that the move may have killed it.

Parameters:

sal 1.025
ph 8
dkh 7
Ca 500 ppm
mg 1400 ppm
phosphate 0
nitrite 0
amm 0
nitrate 5

reefinder
09/20/2017, 09:20 AM
Tanks do not mature android fully go through the cycles in a week. It will take time for the tank to mature and be stable. If it was me I would cut away the dead parts of the coral and re-glue. If not a lot of times you loose the entire coral colony.

reefinder
09/20/2017, 09:21 AM
And not "android" sorry

Khammer
09/22/2017, 12:46 AM
I second that. Tank is not properly cycled if you're saying the cycle only lasted a week. Agreed with the above post from reefinder about cutting away dead parts and re-glue

WLachnit
09/22/2017, 01:06 AM
This does sound like it is RTN and not bleaching (the zooxanthalle get expelled leaving the coral skeleton more visible). I would also agree that the tank is not stable enough.


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