Green Slimer trouble

[r1racer]

What would cause a green slimer to start turning brown and then bleach from the bottom up? My parameters are all in check although my salinity fell to 1.023 and I brought back up to 1.025 in two days using ato water.

The tank is a redo about a month old. Other SPS are doing fine as well as frogspawn and Zoas. Is it too late to save? The tips and the top are still green. The only thing that has changed over the last week was running carbon through a reactor.

[Reefmedic79]

How much does your pH fluctuate during the day?

How long has the coral been in the tank? Did anything change recently, i.e, new lights, powerheads, any new corals nearby?

If there is still healthy tissue on the coral, it's never to late to try and save it.

[r1racer]

Not sure how much it fluctuates during the day but my log has it at 8.2-8.4 for the last 2-3 weeks since I've started testing. It's just a frag and has been in for about 2-3 weeks. I dipped before it went in the DT. Other SPS are doing fine for now. The funny thing is that it was nice and green yesterday and this evening it's turning brown and bleaching overnight. Also, my fish has some sort of growth on it's scales overnight.

The tank is a redo with 9 year old established rock that was cooked for a month. All the paramaters are good. Not a big deal if it dies but I'm just wondering if there is something else going on that might effect the others. How would you try and save it?

[r1racer]

I have a frogspawn about a foot underneath.

[Reefmedic79]

I have a frogspawn about a foot underneath.

Look at the frogspawn at night with a flashlight to see if it's feeder tentacles are reaching the frag. I'll admit a foot away is a reach (no pun intended), but it might be a possibility.

As for your pH, when you can check it in the morning before lights on, and then again right before lights of in the evening to see how much it fluctuates. Fluctuation if normal, how much it fluctuates may be the problem. Probably not the problems since your other SPS don't seem to be effected, but you can rule it out at least.

[Reefmedic79]

The funny thing is that it was nice and green yesterday and this evening it's turning brown and bleaching overnight.
How would you try and save it?

Could be RTN (Rapid Tissue Necrosis), though start to finish can be over with in hours. Is the the brown part slimey?

To save it, take it out and frag it above the live tissue line, and then dip it again. Place back in the tank and cross your fingers.

[r1racer]

Going to go give it a shot tomorrow if it's still alive. Here's a before and after.

http://i484.photobucket.com/albums/rr204/r111racer/photo11_zpsb638cd92.jpg (http://s484.photobucket.com/user/r111racer/media/photo11_zpsb638cd92.jpg.html)

http://i484.photobucket.com/albums/rr204/r111racer/slimer2_zps680be1c3.jpg (http://s484.photobucket.com/user/r111racer/media/slimer2_zps680be1c3.jpg.html)

[Reefmedic79]

The after picture doesn't look bad, it actually looks like its browning out. Which is not uncommon when the coral has been moved to new lighting conditions. It a zoaxanthelea issue (sp?) And normally corrects itself after its adapted to the new lighting conditions.

Sent from my future self.

[r1racer]

My worry is the bleaching on the bottom.

[Reefmedic79]

My worry is the bleaching on the bottom.

That also isn't that uncommon for Frags, sometimes caused by the glue used, or the trauma of being dragged. I personally would wait it out, before refragging the coral.

Sent from my future self.