Monti white edges

[Matt Bravo]

Hey guys I’ve had this monti for a month now and I am realizing some polyps near the white edges have begun retracting. I’ve never had a problem with this so what could be the issue.
(This just started yesterday)
Parms
Salinity 1.026
Mag 1320
Calc 440
Alk 10

You can see the white spots around the top where there’s a small spike. The rest of the polyps are fine

 

[19Mateo83]

Hard to tell with the blue light. White light pictures will let us get a better look.

 

[homer1475]

All I see is blue on blue with a hint of white somewhere around the middle of the pic?


White light pics, will help us, help you.

 

[Matt Bravo]

here’s white pics. It’s retracted since I just fed it. Any thoughts?

 

[Matt Bravo]

Need better pics or are those alright?

 

[David3147]

Check for Monti eating nudi on
The undersides. But also, as everyone stated above.

 

[John K]

I’d also check alk

 

[fodsod]

With your Alk at 10 what is your Phos and Nit levels? A big swing in Phos in either direction could cause some bleaching at the edges.

 

[Matt Bravo]

Check for Monti eating nudi on
The undersides. But also, as everyone stated above.

I’m not too familiar with that pest and I’m getting mixed results online. Can you please post a pic of what to look for?

 

[Matt Bravo]

With your Alk at 10 what is your Phos and Nit levels? A big swing in Phos in either direction could cause some bleaching at the edges.

I had a pretty big alk swing (sorry forgot to mention my bad) about 3 weeks ago now but the monti didn’t really seem to care about it and looked completely fine. I’m currently still trying to bring my alk down to 8-9 range

 

[Matt Bravo]

I think I’ll try dipping the coral later to check for any nudis or any other pest I’ll keep you guys updated

 

[David3147]

I’m not too familiar with that pest and I’m getting mixed results online. Can you please post a pic of what to look for?

sorry for using abbreviations, you can google montipora eating nudibranchs.

Though, of course instability is more likely.

 

[vetteguy53081]

here’s white pics. It’s retracted since I just fed it. Any thoughts?

Focus on alk which generally causes this as well as low calcium. Alk and ca work together and is best when both are balanced. Assure temp has not become elevated and salinity has not dropped.

 

[Matt Bravo]

sorry for using abbreviations, you can google montipora eating nudibranchs.

Though, of course instability is more likely.

I understand they were nudibranchs I just don’t know if they are like the ones that eat aiptasia

 

[Matt Bravo]

Focus on alk which generally causes this as well as low calcium. Alk and ca work together and is best when both are balanced. Assure temp has not become elevated and salinity has not dropped.

Temp has been stable 77f but I’ll check calc again later today

 

[vetteguy53081]

Temp has been stable 77f but I’ll check calc again later today

Calcium range 400-450

 

[19Mateo83]

Montipora eating nudibranch

 

[homer1475]

I had a pretty big alk swing (sorry forgot to mention my bad) about 3 weeks ago now but the monti didn’t really seem to care about it and looked completely fine. I’m currently still trying to bring my alk down to 8-9 range

Corals can live thousands of years, 3 weeks is a blip on the timeline for corals. The alk spike 3 weeks ago is probably what is causing the bleaching your seeing now.

 

[Matt Bravo]

Calcium range 400-450

Calc is still 440

 

[Matt Bravo]

Corals can live thousands of years, 3 weeks is a blip on the timeline for corals. The alk spike 3 weeks ago is probably what is causing the bleaching you’re seeing now.

I also increased lighting. I’ve seen sps get crazy light so could that be the case too?
Also will it ever regenerate on the white spots?