URS Red Planet help

[bassplaya12]

We have a red planet frag in our tank. It's been growing and has looked awesome. Yesterday morning I look and it's bleached from the encrusting on the frag disc to about half way up it. Water params are all in check. What could've caused such a sudden change?

 

[flyyyguy]

that doesnt sound like its bleached

that soundsl like rtn/dead

if you do not see any polyps on tissue on the white part it is dead, not bleached.

cut the tip off of the coral now, eliminating all of the dead area, and stick in a dab of super glue

Many times this can save a part of a rtn'ing coral depending why the coral did it. Soemtimes it cant

hope for the best.

GL

 

[bassplaya12]

the polyps are still out, the color is just really pale. it also literally just did it over night. it was perfectly fine at night, in the morning it was all pale

 

[triguy]

do you have an anemone? If so, did it move in your tank possibly stinging the RP?

 

[bassplaya12]

no and its not near any other coral at all actually.

 

[lucasabao]

what about temperature?
any changes in the last few days?

 

[90ct]

It's happened to one of my colony once. Suddenly, over night the base and some branches of my SPS all white. The next night, I feel really bad to my SPS so just stand there and look at my tank. Guess what I saw????? I saw a black nudibranch that crawling to my colony and and start sucking out the life of it. After seeing it did to my SPS, I removed the colony and get it out. Man, it sucked to my colony as leeches suck to your hand. Luckily, I caught it early before it do more damaged to my tank.
In your case, I will wait till the light go off and use the flashlight to find something funny coming out from your rocks. Good luck.

 

[rc4kinu]

Ditto 90ct. I found a 6 in. bristleworm munching on my mother colony from the base up. Happened quickly, too. Only came out when moonlight went off around midnight. First thought it was RTN but after I found the worm and removed it the decline of mother colony suddenly stopped. It seems like RTN starts at coral's tips and predation starts from the base up. Not scientific but just my observation.

 

[shenyong]

agree

Ditto 90ct. I found a 6 in. bristleworm munching on my mother colony from the base up. Happened quickly, too. Only came out when moonlight went off around midnight. First thought it was RTN but after I found the worm and removed it the decline of mother colony suddenly stopped. It seems like RTN starts at coral's tips and predation starts from the base up. Not scientific but just my observation.

 

[losthere]

Sounds like a swing in params.

Never heard of a acro eating nudi. Thats a new one. (I have heard of monti eating nudis)
Bristle worms arent coral predators either.
RTN starts where it wants to.

 

[bassplaya12]

The only params that have swung at all would be the temperature. It swings ~4-5 degrees somedays

 

[saltygeek]

Sounds like a swing in params.

Never heard of a acro eating nudi. Thats a new one. (I have heard of monti eating nudis)
Bristle worms arent coral predators either.
RTN starts where it wants to.

There was a thread about a guy who had nudis of some sort eating his acros. He put them into a seperate tank with small frags to "study" them. They kept going back to the acros, so I believe they are out there but rare. Unfortunately I remember him running out of frags to feed them and they died off. +1 on the bristleworms. They were likely cleaning up the already dieing tissue from the stn/rtn.

 

[bassplaya12]

What is the abreviation stn/rtn you guys keep using? Haven't heard that one. Also, if it was a pest eating it, any reason it wouldn't be eating any other corals?

 

[michaelracer]

bassplaya12....stn/rtn stands for slow tissue necrosis and rapid tissue necrosis, necrosis just means death so they are saying that the tissue of the sps is slowly or rapidly deteriorating for some unknown reason

 

[rireuter]

It's happened to one of my colony once. Suddenly, over night the base and some branches of my SPS all white. The next night, I feel really bad to my SPS so just stand there and look at my tank. Guess what I saw????? I saw a black nudibranch that crawling to my colony and and start sucking out the life of it. After seeing it did to my SPS, I removed the colony and get it out. Man, it sucked to my colony as leeches suck to your hand. Luckily, I caught it early before it do more damaged to my tank.
In your case, I will wait till the light go off and use the flashlight to find something funny coming out from your rocks. Good luck.

what you saw was a scutus, i know because i had them in a tank before. they are fine as long as they have plenty of algae to eat, but once the algae is all gone and they get hungry they go for acro tissue to supplement their diet. it does appear to be a "black slug" but it's common name is a "shield snail". there are many species, but the ones i had in my tank were black, and sometimes it looks like they have a white stripe down their back, but it is actually their "shield" showing through. many people tried telling me that they wouldn't eat an acro, but i did an extensive search and found some other cases where people were reporting the same thing, then i finally caught one and snapped a pic, that was on my old comp and i'll see if i can round the pic up. pest were one of the many reasons that is used "dead" rock on my new setup, things like this are all to painful, i hope the best for your colony!!!


link to the "acro eating nudi" :blown:
http://reefcentral.com/forums/showthread.php?t=1630540

 

[bassplaya12]

the bleaching has appeared to stop or at least slowed down alot. the polyps are still out so I guess that's good?