Help, SPS bleaching in patches

[Teck pang]

Hi,

Can i seek the help of seasoned reefers to enlighten me on what could be wrong with my corals? 

Is there any sps eating parasites that i do not know of? 

For the past few days some of my sps are bleaching in patches and i could not figure out why.

The water parameters are stable with nitrate a little over at 25ppm and phosphate at 0.1ppm.

 

The green monti frag has been with me for arond 3 months, it started having patches bleaching but the pocci & red monti seem not to be affected.

 

Forest fire have been doing great until recently , it started to bleach in patches too. The green birdnest does not seem to be affected.

These are also not in very good shapes too. I am kinda at loss of what to do.

All the rest of the LPS & zoas seem fine and happy.

Not sure if these changes below could be the causes of sps to bleach or is there any parasites that can causes SPS to bleach in patches:

1) On 1 aug, my chiller internal thermostat malfunctioned and the tank temperature was fluctuating around 26 - 30 degree for a few days

2) on 1 aug, I also added 8 fishes that has been quarantined for a month, 1 radiant wrasse, 1 yellow tang, 1 blue tang, 1 sailfin tang, 1 black blenny, 1 goby, 1 chromis

3) on 1 aug, i increased the intensity (radion) of white and warm light from 3% to 10% for better viewing but had since tone down the light intensity after i discover the sps bleaching in patches. 

 

 

Any advice will be appreciated as i could not figure out what went wrong....Thank in advance!

 

[Reefhappy]

Bro, just my opinion, lighting intensity may be too high, need to tune down or move the corals further down the tank. Add some carbon to remove any toxins that may be present in the tank. Keep the usual foundation parameters as well as temperature stable then monitor for a while.


Sent from my iPhone using Tapatalk

[Teck pang]

Yea, I guess it is the intensity and the temperature swings that might have caused it. Have tried dipping twice but cannot find any Monti eating nudibranch too. I m gonna properly leave it alone for a few weeks and low the light intensity. Thank for the suggestion bro!


Sent from Singapore Reef Club mobile app

[Rudz Vankovic]

I have the same problem too.. being a new reefer, I heard that sps needs to be w high light n high flow. Seems like some montis n frags r bleaching.. my parameters r ok. So I'm guessing could be my light. But then again...

Sent from Singapore Reef Club mobile app

[Clement Chen]

Seems like due to adding a lot of fishes at one time could have increased ur nutrients. Can I check what test kits are u using for nitrate and phosphate 

[Teck pang]

Seems like due to adding a lot of fishes at one time could have increased ur nutrients. Can I check what test kits are u using for nitrate and phosphate 

I might be too. I am using salifert to test the nitrate and phosphate btw. I think there are too many changes in that period. Chiller thermoset spoiling, adding fishes then changing intensity of light. I think next time must relax abit. Hahha

[Alypapa]

 how old and big is your tank bro? Higher nitrate level in a not matured tank and triggered by adding a few fishes coild have affected your sps. Try not to adjust or change too many things at one go, test your perimeters and slowly adjust. U can de

[Teck pang]

My tank is around 6 months old bro. I just ended my fallow period on 1 aug so dump all the quartile fishes into the main tank..haha..learnt my lesson that sps don’t like too many changes at once but they r recovering now though. It is a good sign


Sent from Singapore Reef Club mobile app

[Alypapa]

Glad that your corals are getting better. I have quite a few sps clashes before so i can Really understand what u means.

For me, alk no3 and po4 is the most important for keeping sps. Test them often to be sure that yr tank are stable.

Let me know when yr tank are more stable. I can pass u a few easy sps frags to try.

[Teck pang]

Thank you so much for the offer Alypapa! when my tank was in fallow period there is not much no3 & po4 but after adding all the quarantine fishes it shoot up.

I have ordered an ATS from taobao though, hope when it came I can gradually stabilize my tank parameters


Sent from Singapore Reef Club mobile app

[Alypapa]

The ATO will certainly help to stabilize yr perimeter. Do u keep a log book or use app to keep track ?