Patchy necrosis on acropora

[kagisexton]

I noticed some recent tissue loss patches have appeared on some pink Cadillac acro. Nothing else seems to be affected and doesn’t look like the AEFW pics I see online.

Lighting is T5s with xr30s and have a ton of flow, so I doubt it’s either of those.

Anyone have any idea? It seems to be mostly on the underside but hard to believe there is a lack of light.

Recent ICP showed slightly high in cesium and slightly low in manganese but that was it. Parameters as of today are as follows:

salinity: 35.2 ppt
Temp: 79-80
alk: 7.6 dkh
Ca: 410
Mg: 1280
No3: 1-2
Po4: .07

 

[Epic Aquaculture]

Can't really see anything from those pics. Any chance you can get closer?

 

[brahm]

Take a power head or a turkey blaster to it, you’ll find out quickly if it’s Aefw if they start flying off, or if it’s easily removable can anyways dip it and see what falls off.

 

[kagisexton]

Take a power head or a turkey blaster to it, you’ll find out quickly if it’s Aefw if they start flying off, or if it’s easily removable can anyways dip it and see what falls off.

I did just that and saw nothing at all come off.

Can't really see anything from those pics. Any chance you can get closer?

They are pretty far away from the glass so there is no real good way to get a photo of the underside without removing them from the tank, as you can see they are pretty encrusted