Any idea what these are? Pest ID?

Reefin' Alaska

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Have a feeling these are destroying my Stylo/Monti..

20240829_075803.jpg 20240829_075811.jpg
 
Those are amphipods; I have heard in some cases of them going after corals, but it's quite rare unless the coral is unhealthy in some way already:
Yeah, every now and then I see posts about amphipods eating corals - interestingly, I haven't been able to find any scholarly articles describing corallivory in amphipods, but it seems there's a good chance it's a legitimate thing.

Nocturnal invert eaters like some wrasses are a good choice - you could also try things like some species of cardinalfish if you wanted, but they probably wouldn't be as aggressive as some of the "pest control" wrasses about eating them.
 
They look like pods. They came for the meal of dying coral.

Pic of tank.
Got flow?
Got lights?
Parameters?

I tested last night, parameters are all steady as they have been for months.


Nit - 12
Phos - .06
Cal 480
Alk 8.89
Mag 1299

Pretty standard for a while now. I'm losing a monti and stylo. I have a frag of the same Monti on the opposite side of my tank doing perfectly fine. No issues with Acros/Goni or Zoa's.

I confess I've never had much success with Stylo, always seems to grow like a weed then flesh from the bottom up starts to almost peel away. Never been able to figure it out. I just noticed those on it in the dark on Tuesday. Also found 1 on the base of the monti that is struggling.
 
I tested last night, parameters are all steady as they have been for months.


Nit - 12
Phos - .06
Cal 480
Alk 8.89
Mag 1299

Pretty standard for a while now. I'm losing a monti and stylo. I have a frag of the same Monti on the opposite side of my tank doing perfectly fine. No issues with Acros/Goni or Zoa's.

I confess I've never had much success with Stylo, always seems to grow like a weed then flesh from the bottom up starts to almost peel away. Never been able to figure it out. I just noticed those on it in the dark on Tuesday. Also found 1 on the base of the monti that is struggling.
Flow and lights(par/spectrum) are as important as parameters.

One side of the tank could have nice flow and the other lacking.
 
Flow and lights(par/spectrum) are as important as parameters.

One side of the tank could have nice flow and the other lacking.

Guess it's something to look into, 4 MP40's on a 5 ft tank, there doesn't seem to be any dead spots. Guess maybe they just don't like being there. Lol
 

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