Problems with Acropora corals

[Reef_do_piza]

I didn't see any pests; I checked with a magnifying glass

 

[CoralWealth]

I didn't see any pests; I checked with a magnifying glass

That's good.

I think it could be too direct of flow. Are all these corals close to another? They definitely look stressed with some of the tissue looking "tight"

Also do you have pictures with lights on?

 

[Reef_do_piza]

Isso é bom.

Acho que o fluxo pode ser muito direto. Todos esses corais estão próximos dos outros? Eles definitivamente parecem estressados, com alguns tecidos apresentando aspecto "tenso".

Você também tem fotos com as luzes acesas?

 

[CoralWealth]

Very nice tank overall. I would not change anything based on those couple of SPS. They definitely are stressed and could be from a quick change in alk possibly but I am sure they will be fine going forward as long as those parameters you sent stay steady. It also kind of looks like light shading issues in the first photos you uploaded.

Just keep doing what you are doing and watch them, especially the PE after lights turn off.

 

[Reef_do_piza]

Very nice tank overall. I would not change anything based on those couple of SPS. They definitely are stressed and could be from a quick change in alk possibly but I am sure they will be fine going forward as long as those parameters you sent stay steady. It also kind of looks like light shading issues in the first photos you uploaded.

Just keep doing what you are doing and watch them, especially the PE after lights turn off.

Thanks, friend. I have other Acropora corals, and they extend their polyps after the lights go out. I will continue to monitor them

 

[kratosxxl]

My nutrient levels have always been near zero; I only recently managed to raise them. I believe the drop in phosphate is due to the fact that I slightly reduced the amount of food I provide—I used to feed twice a week with a mix I put together, consisting of various fish foods, nori, clams, etc.—and I also upgraded to a larger protein skimmer, which is actually oversized for this aquarium. My salinity consistently stays between 1.025 and 1.026, as measured weekly.
Yes, I am having issues with *Aiptasia* (anemones), but I’ll be adding a filefish today to take care of that.

Is it a typo or you feed twice a WEEK ? Im asking cuz i feed 3 times a day small portion but , fish do need food daily.

 

[Reef_do_piza]

Is it a typo or you feed twice a WEEK ? Im asking cuz i feed 3 times a day small portion but , fish do need food daily.

Yes, that was indeed a mistake; the fish are fed daily—2 to 3 times a day. The corals are fed twice a wee

 

[kratosxxl]

Yes, that was indeed a mistake; the fish are fed daily—2 to 3 times a day. The corals are fed twice a wee

what u feed corals ? i do benepets

 

[Reef_do_piza]

what u feed corals ? i do benepets

MIn S fauna marin and Zooton tropic marin

 

[kratosxxl]

MIn S fauna marin and Zooton tropic marin

It looks like these are slightly different from regular food—they contain amino acids, so I need to look into them more. I have Aquaforest Zooplankton and no idea how much to use. I even contacted their support and I'm still waiting on instructions on how to use it

 

[Reef_do_piza]

It looks like these are slightly different from regular food—they contain amino acids, so I need to look into them more. I have Aquaforest Zooplankton and no idea how much to use. I even contacted their support and I'm still waiting on instructions on how to use it

Zooton is Tropic Marin’s zooplankton.
Fauna Marin describes Min S as a concentrated food, composed of mollusks and crustaceans, containing proteins, fats, amino acids, vitamins, and trace elements.

 

[kratosxxl]

Zooton is Tropic Marin’s zooplankton.
Fauna Marin describes Min S as a concentrated food, composed of mollusks and crustaceans, containing proteins, fats, amino acids, vitamins, and trace elements.

does Min s raises Phosphates ? like reefroid

 

[Reginald Reefer III]

Just saying.

 

[Reef_do_piza]

does Min s raises Phosphates ? like reefroid

I cannot tell you that for sure.

 

[Reef_do_piza]

I cannot tell you that for sure.

I’m considering this bleaching in relation to my phosphate levels, which are in freefall. I tested today and got a reading of 0.04.It was previously 0.15–0.8–0.6... and I have no idea where this consumption is coming from.

 

[slingfox]

I’m considering this bleaching in relation to my phosphate levels, which are in freefall. I tested today and got a reading of 0.04.It was previously 0.15–0.8–0.6... and I have no idea where this consumption is coming from.

What are you using for nutrient export?

 

[Reef_do_piza]

What are you using for nutrient export?

I only use a skimmer; I don’t have GFO reactors, *Chaetomorpha* algae..

 

[55semireef]

Did you buy these Acros with color? If so, give me an approximate timeline of when they lost their color to this brown look. Rapidly losing their pigmentation versus slowly browning would be very helpful. Also, I know you mentioned you have two Radion G4s, but have you measured the PAR these Acros are receiving? IME, SPS that start to lose their color typically happens when they aren't getting enough light and/or nutrients from the tank. Since you have decent nutrient numbers, I want to explore how much light they are getting. The salinity changing is not the reason why they went brown.

Something to consider - an ICP test because then you can start to document what your corals looked like at the given conditions they are living in.

 

[RajM]

I am no acro expert but I see some PE on the acros which means they are not completely unhappy.
The parameters seem fine.
The side that not facing the light will usually look whitish with lights off.

Also I assume it’s a well established tank.
You also dipped your corals before adding.

Add aminos as per dosage instructions.

Borrow a par meter and check light levels.

 

[slingfox]

Agreed with the posts above that the parameters look good and form the picture it seems the tank is well-maintained overall. I also would not make any drastic changes if the other coral are doing okay. First issue I would try to address is reducing the aptasia population. Very annoying pest so I hope the filefish works for you!