Digi Went White Overnight!

[ScoobyElla]

My digi went white overnight! Was pink and is now white! And now my pocillopora is starting to get white at the bottom. Any ideas?

 

[SifuMemphis]

Sorry , but it's most likely dead. RTN. The other SPS in the front doesn't look like it's doing well either.

What are your tank parameters? How long has it been up for?

 

[ScoobyElla]

Sorry , but it's most likely dead. RTN. The other SPS in the front doesn't look like it's doing well either.

What are your tank parameters? How long has it been up for?

Temp 79
pH 8.2
SG 1.023
Ammonia 0
Nitrites 0
Nitrates 10-20ppm

it’s been up since September. It was doing fine for the last few weeks and I haven’t added or changed anything since I got the Digi. Coral Beauty has been picking on some of the corals though. Will RTN spread to my other SPS?

 

[ScoobyElla]

These are my other corals. They all look good except for the sunset Monti. Please let me know your thoughts.

 

[ScoobyElla]

Should I move any of them you think? Any advice is appreciated!

 

[rmay6850]

For me the salinity seems a bit low and temp somewhat high...

What is alkalinity, calcium, and phosphate look like?

 

[SifuMemphis]

RTN doesn't "spread" so I think you're safe there. We need to know what your alk, calcium, and phosphate looks like. Big thing with SPS is they DO NOT like alk swings. Alk swings can cause STN/RTN if the swing is big enough. I also loss a few pieces when I dropped my alk too quickly.

Also, Coral beauty is a type of angel fish, and they are known to nip at corals, which can / will kill the coral. Imo, take him out, especially if you see it nip at corals as you mentioned.

Also, given your tank and the age, it still seems pretty new and not well established yet. While some people have success with SPS right after the cycle, not everyone is able to do the same. I would also assume the tank is too new for sps.

 

[vetteguy53081]

Some parameters are off.
Typical causes:

Alk high or spiked
temp high
salinity too high or too low
CA high
Nitrate high
Phosphate high
Red bugs
Inadequate flow

recommended:

Temp 77-79
saliity 1.025 - Yours is low at 1.023
ph 8.1-8.3
nitrate < .04
Ammonia < .03
Phosphate < .04
Alk 8-9
CA 440
Mag 1300