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Here we go again! Almost similar to last episode but slower rate: http://wamas.org/forums/topic/53040-devastated-birdnest-colony-wiped-out/

 

I obtained a multi branches BN a 3 months ago and was doing great until now (totally gone :sad:).

Water parameter check out OK: Just did a 15% change reef crystals a week ago!

sal-1.025

ph-8

alk- 9

No2-0

No3 (get different reading each time (between 5-20)--possible bad solutions).

mg-1300

ca-420

 

I thought I might accidently got something in the tank (throw in poly pad, negative :rolleyes:!)

 

This is what it looks like between January and now.

Bn1

 

3 week ago:

Bn2

 

 

Yesterday:

 

BN3

As for the Pink polyps monti (got it 5 months ago) just notices 2 days ago. It whiteout pretty quickly:

 

yesterday:

pink monti

 

today (the whiteout is doubling over 1 day period!) (Seachem dipped it yesterday didn't see anything)

pink monti 2

AEFW usually cause SPS to RTN from the bottom up like the bridsnest. Nudibranch can do the same thing to Montipora. You can see the nudibranches at night. They like to lay their eggs under the montis. Are you sure you don't have any pests? Have you checked your RO/DI water for TDS or even ammonia?

(edited)

Do any of your other SPS have little bald spots towards the bottom of their branches?

Edited by Jans Natural Reef Foods

Do you dose anything? I burned the tips on 3 of my SPS because of dosing carbon and having high alk.

Thanks all

phos-0

ammonia-0

I dose 2 parts and mg.

RODI- 5 (I usually change filter and resin if it around 15).

All other SPS seem normal.

Similar to last time. I thought I might have bugs. turned out nothing, Red/orange Monti recovered and BN survived and coming back.

Hopefully, the pink monti will pulled through.

Both times you appeared to do a water change which can

for some cause 2 types of issues.

Some salts and or water storage containers can have unsafe

levels of TOC which if added to a tank already high in them

can cause STN/RTN.

A 2nd problem can be a buildup of yellowing compounds that act

lower the par your corals get a large water change can effect birdnest

an montis first as they are more sens to spikes in par.

Running alot of GAC and some phos remover at all times will prevent this.

Get a white cup/bowl and fill with your tank water or dip a white plastic strip

into your tank and check if it looks yellow.

It's funny how people think around here-

When they hear hooves, they think Unicorns. When I hear hooves, I think Horses.

 

Maybe the close proximity to another coral is what killed them? Smaller frags also die sometimes for no apparent reasons.

Oops, thanks Dave. This is why you are the Director and VP!

FYI, birds nest is not an Acropora so is not susceptible to AEFW. It's Seriatopora genus.

(edited)

Unicorns aren't real, Rob. I know that. Just got my oporas mixed up.

 

It's funny how people think around here-

When they hear hooves, they think Unicorns. When I hear hooves, I think Horses.

 

Maybe the close proximity to another coral is what killed them? Smaller frags also die sometimes for no apparent reasons.

Edited by Jans Natural Reef Foods

Any temperature changes that you are aware of? I had some very similar issues when one of my heaters died and my temperature dropped a few degrees quickly.

Could be your system is just a tad to clean.

not that clean! :rolleyes:

Both times you appeared to do a water change which can

for some cause 2 types of issues.

Some salts and or water storage containers can have unsafe

levels of TOC which if added to a tank already high in them

can cause STN/RTN.

A 2nd problem can be a buildup of yellowing compounds that act

lower the par your corals get a large water change can effect birdnest

an montis first as they are more sens to spikes in par.

Running alot of GAC and some phos remover at all times will prevent this.

Get a white cup/bowl and fill with your tank water or dip a white plastic strip

into your tank and check if it looks yellow.

BN was loosing flesh prior to water change. I used the dedicated container for water change (maybe something got in it, but nothing show up in the white poly pad, don't see YELLOW either). I also have my phos reactor run 24/7.

 

FYI, birds nest is not an Acropora so is not susceptible to AEFW. It's Seriatopora genus.

I know that! :tongue: Thks for clear it up with Jan :happy:

It's funny how people think around here-

When they hear hooves, they think Unicorns. When I hear hooves, I think Horses.

 

Maybe the close proximity to another coral is what killed them? Smaller frags also die sometimes for no apparent reasons.

Possible! I have a frogspawn colony a good distance away on the right. if it can reach the monti, it certainly will damage the right side of the monti...hope it make it. otherwise I have to knock on Paul door for another piece :laugh:

 

Any temperature changes that you are aware of? I had some very similar issues when one of my heaters died and my temperature dropped a few degrees quickly.

Nope! only fluctuate ~1 degrees between day and night.

 

 

Thanks all. Will update.

If your nitrate is zero and your phosphates are zero, then....just sayin.

Aefw also don't cause rtn. Bad water and husbandry will though. Rapid tissue necrosis happens in a day or two. You can watch it happen. Aefw will eat a coral slowly over a period of time.

AEFW usually cause SPS to RTN from the bottom up like the bridsnest. Nudibranch can do the same thing to Montipora. You can see the nudibranches at night. They like to lay their eggs under the montis. Are you sure you don't have any pests? Have you checked your RO/DI water for TDS or even ammonia?

 

Aefw also don't cause rtn. They do seem to work from the base up but its two different things. Rapid tissue necrosis happens in a day or two. You can watch it happen. Aefw will eat a coral slowly over a long period of time. And yes they only eat acros... I knew the other thread I started on them would float down the page with few participants...

 

Montipora eating nudis will eat anywhere they can but will hide during the day. They leave white patches all over the monti's. extremely hard to see from your pics I don't know what I am looking at on my phone. Coral RX is what you want to use if your looking for monti eating nudis. Not sure if there are any other products that work well on them.

 

I am just trying to help not saying I see any pests, just trying to help people identify them... You problem could be an array of things.

Aefw also don't cause rtn. Bad water and husbandry will though. Rapid tissue necrosis happens in a day or two. You can watch it happen. Aefw will eat a coral slowly over a period of time.

 

Aefw also don't cause rtn. They do seem to work from the base up but its two different things. Rapid tissue necrosis happens in a day or two. You can watch it happen. Aefw will eat a coral slowly over a long period of time. And yes they only eat acros... I knew the other thread I started on them would float down the page with few participants...

 

Montipora eating nudis will eat anywhere they can but will hide during the day. They leave white patches all over the monti's. extremely hard to see from your pics I don't know what I am looking at on my phone. Coral RX is what you want to use if your looking for monti eating nudis. Not sure if there are any other products that work well on them.

 

I am just trying to help not saying I see any pests, just trying to help people identify them... You problem could be an array of things.

Thanks Paul,

If only I can identify the problem and then try to resolve. I tried looking @ night with flashlight for nudi. Quite frustrated when you can't determine what's wrong in order to fix the problem.

Today, I don't see any further damage to the monti. keep my finger crossed.

Yea if they are there, you will most likely see them if you pull it out and look as long as you know what to look for. They do blend in well with the dead coral. Just keep your eyes open and water stable you will be fine.

(edited)

When I found montipora eating nudibranch on a montipora confusa from a tank breakdown several years ago, Ziggys tank breakdown, I found them in a burrow they created on the underside of the monti. They also laid their eggs in that burrow. I didn't know I had them until I was looking at the tank with a flashlight one night. They came out from underneath the monti. I never had white spots on any monti, just large burrows underneath when I pulled the monti out of my DT.

Edited by Jans Natural Reef Foods

Using too much GFO too soon can also cause coral bleaching. There are several posts on the internet about it.

When I found montipora eating nudibranch on a montipora confusa from a tank breakdown several years ago, Ziggys tank breakdown, I found them in a burrow they created on the underside of the monti. They also laid their eggs in that burrow. I didn't know I had them until I was looking at the tank with a flashlight one night. They came out from underneath the monti. I never had white spots on any monti, just large burrows underneath when I pulled the monti out of my DT.

 

Jan THIS is the reason why I wanted people to join in on the aefw thread! Everyone's experience with each pest is totally different. We will not learn unless people share their personal experience.

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