At my wits end with acros

[Graffiti Spot]

The pic is really hard to see but from what I can tell there are multiple types of problems I think I am seeing. The recession on the base of at least one from stress. The bonsai looks rough and discolored which I normally see when a tank has bacterial issues. And one coral I can barely see looks like it was burned and missing color or flesh in the middle areas.
If I am right with what I am seeing I would just let things go and see what recovers. There is no point in trying to do anything but keeping things stable and make sure your light is good. Once you see clean strong new growth you could start thinking about adding some stuff. The pic is not much to go on from looking on my phone though so there could be other things I am not seeing.

 

[Duffer]

Bleaching usually happens at the tips, not the bases. If it’s the base of the piece bleaching, it is probably a flow issue. The bonsai looks fine to me imo. I’ve never seen a green bonsai. They are all usually a dark purple with green polyps. The one in the first pics is not “bleaching” at the base. That is tissue recession.

That’s what I meant on the bonzi it had green polyps which now look white..what causes tissue recession

 

[45ZoaGarden]

That’s what I meant on the bonzi it had green polyps which now look white..what causes tissue recession

The polyps themselves are white? I haven’t seen that before. I’ve only seen the skeleton itself white out...

 

[ScottB]

That’s what I meant on the bonzi it had green polyps which now look white..what causes tissue recession

Tissue recession or necrosis is the coral's thin flesh eroding away leaving the skeleton exposed. RTN is rapid, STN is slow tissue necrosis. Any number of causes. Tough to recover from.

Bleaching is when the (smooth, slimy) tissue is still present, but the pigmented zooxanthellae have been expelled. Also many causes. Common for too much light, too little nutrient, too high ALK, or any quick changes. Acros can recover. Hold on to them until algae starts taking over the skeleton.

Smaller areas of apparent necrosis around the base are often pests. The kind of damage marks you see on leaves from terrestrial aphids.

Acros that go pale (which is what I saw, but can be debated) typically are going a bit hungry, but there are other causes.

Acros can go weeks without showing stress from change and then suddenly Bam!

 

[SeaDweller]

The polyps themselves are white? . I haven’t seen that before. I’ve only seen the skeleton itself white out...

I mean... you can kinda see that in the pic... which is what he was trying to tell you in the first place...

 

[Duffer]

Thanks everyone, I have stopped carbon dosing, raised the white for a limited time period...let’s see how it goes...I really appreciate everyone that had some very good impute, you guys are the best

 

[45ZoaGarden]

I mean... you can kinda see that in the pic... which is what he was trying to tell you in the first place...

I didn’t see that in the picture actually. And still don’t.

 

[Duffer]

I didn’t see that in the picture actually. And still don’t.

Here the bonzi

 

[BuBBly FiSh]

I have SPS acro's in my tank, and they have been fine for a couple of months. Yesterday i noticed some bleaching and it's driving me nuts:

Parameters are:
Alk 8.6
Calcium 450
Mag 1350
Nitrates 2
Phos .07

Lighting (2) 26Hd's
tank is 48" x 21 x 24

You changed light settings, height, hours or intensity?

 

[45ZoaGarden]

If it were bleaching, wouldn’t the skeleton be white too?

 

[Duffer]

You changed light settings, height, hours or intensity?

Nope, running the brs AB + for months now, corals we’re doing great Saturday and than Sunday whammo

 

[Charlie’s Frags]

What did you start doing new in the last 2 weeks?

 

[Duffer]

What did you start doing new in the last 2 weeks?

Not a thing

 

[Charlie’s Frags]

I’d stop the vodka. I had that kind of tissue recession when using nopox.

 

[JoeyDiesel]

Have you tried dosing any aminos?

 

[Duffer]

Have you tried dosing any aminos?

Been using acropower

 

[45ZoaGarden]

Nothing wrong with acro power

Been using acropower