Large RFA died and a large BTA unhappy - treat or remove or focus on overall tank health?

[Singspot]

Large RFA died and a large BTA unhappy - treat or remove or focus on overall tank health?

 

[dthom]

We will need more information to really be able to help or form ideas on what may be going on.

Can you share some pictures of the tank?
Also need to know current equipment, how long has the tank been setup and latest test results.

 

[Singspot]

Some pictures attached the dark image has the unhappy Nem closed. I know Nems close ... only this name has been vlosing for last 4 days and opens onoy half (its behind the big yellow BTA on top right upper BTA.

It hasbeen in tank for 4 months

Tnak been setu0nfor 5 years

No new fish in 1 year

No new Nem or BTA in 3 months

new Goni, Torch, Hammar and small leather 4 days back.

my Nem unhappy for 4 days. The Large Rockflower died 7 day back after I noticed my Black Back butterfly was nipping at it ... i removed the butterfly but the 5 year old RFA continued to degenerate and i removed it.

Test results (29th and 30th June)
Salinity: 1.025
Magnesium: 1380
Carbonate Hardness: 7.3
Alkalinity (in night): 7.7
Nitrate: 20
Phosphate: undetectable
(All Salifert test)

 

[dthom]

Overall sounds like your tank is in pretty good shape.
I would just focus on your water quality.
Need to get your phosphates up some and your nitrates down some.

 

[Singspot]

My tanknhas had moonlights (sleep time) for 2 hours and room dark ... i notic3d a bunch of pods/ copepods lookikg insects on the Big Anemones that are not happy ...

Checkout the video ... it only shows just 1, others ran off when i turned my flashlight to record...

Do pods/ copepods hurt Nem in any way?

 

[Tired]

Those are amphipods. Amphipods will chew on stressed and dying corals/anemones, and, in a fishless tank with no predators and not enough food, may overpopulate and attack healthy corals. Probably they're interested in the anemone because of its ill health. Won't help anything, that's gonna stress it further if they start gnawing, but they aren't the original cause.

Crank your phosphates up. Lack of phosphates will kill photosynthetic organisms.

Are you feeding the anemones any? If so, what, how often, and how much?

Medication should only be used on known problems, when appropriate. Blindly treating is likely to do nothing at best, and harm at worst. An anemone showing general stress is not one that needs to be medicated. Fix the problem, give it overall good conditions, and it should recover.

 

[Singspot]

I can stop my gfo to up the Phosphate....

What eats the amphipods?

I can add the amphipod eaters. ...

 

[Tired]

Almost any fish will eat amphipods. Yours probably are, though maybe not in high numbers, since it looks like your fish are all on the larger side. If you wanted to try to lessen the number of pods, you could try adding a smaller fish. Maybe a yellowtail blue damsel, since it might need to stand up for itself?

Again, though, the pods aren't the root problem. They just might be making it slightly worse.

Definitely remove your GFO if your phosphates are staying too low. You want a minimum of 0.03ppm phosphates at all times.

Are you feeding the anemones? If so, what, and how often?

 

[Singspot]

I used feed anemones bit ones inhad to be out of station for 4 weeks and my family never fed Nems. I came home and my Nems never looked better. That was it, i simplified my tank from there, no feeding Nems. I keep water good and feed fishes on both sides of tank ... all Nems, Gonis and torches filter feed or do photosynthesis.

Is it possible Nems may not be getting enough light and may not be movimg either?