My acan has RTN ?

[Brad Miller]

Hey y’all !
My acans have been doing great so far.
This one started to have something white in between the two top polyps which are shrinking (were nice, big and round)
I noticed that the front dead polyp you see in the pick had a bunch of slime (not sure if it is brown jelly, never saw it myself) on it so I just rinsed him off with tank water and took these pics....
Any idea if it’s bacterial ?
Tank has been very stable but recently started auto dosing and is just under 1 year old now.
Have a cleaner shrimp and lots of cuc members, but don’t believe anything is bothering with it.
Just 2 clowns, royal gramma watchman goby and pistol shrimp.

 

[Travis Stewart]

Hey y’all !
My acans have been doing great so far.
This one started to have something white in between the two top polyps which made them squish and get oval (were nice, big and round)
I noticed that the front dead polyp you see in the pick had a bunch of that slimy stuff on it so I just rinsed him off with tank water and took these pics....
Any idea if it’s bacterial ?
Tank has been very stable and is just under 1 year old now.
Have a cleaner shrimp and lots of cuc members, but don’t believe anything is bothering with it.
Just 2 clowns, royal gramma watchman goby and pistol shrimp.

May want to pull out and dip. Might have pest eating it.

 

[Kvnsu]

What's your water parameters at? Something might be off.. But as above have stated, take it out and dip just to be safe.

 

[Brad Miller]

Alk 8.7
Phos 0
Nitrite and nitrate 0
Calc 450
Mag 1350

I’ll dip him and see what shakes out

 

[Kvnsu]

Has ALK always been at 8.7? I've seen that ALK swings kill my acans.

 

[John3]

Nitrates at zero is almost suspect of a bad test, same with phosphates at zero. If they truly are at zero that is probably your problem. All corals need some of these for food, and lps and softies like these on the higher side.

 

[MrObscura]

I lost an acan earlier in my tanks young life, I now real use myvtsnk was starving.

If no3 and po4 are zero, or close to it, that could very well be the problem.

 

[Brad Miller]

Has ALK always been at 8.7? I've seen that ALK swings kill my acans.

I have had some swings while putting my dosing pumps online recently...was a stable 8 with manual dosing the whole time, then wet up over a few days to 9.4, that’s when I tested and started dropping it, and other acans next to it are great looking.

I dipped him in coral rx and didn’t see anything but a ton of pods, now have the acan in a separate tank.

 

[Brad Miller]

Nitrates at zero is almost suspect of a bad test, same with phosphates at zero. If they truly are at zero that is probably your problem. All corals need some of these for food, and lps and softies like these on the higher side.

I always feed a lot and have too good of a skimmer....have been dry skimming now and trying to get them up.
I obviously have nutrients cause my chaeto is growing fast in the fuge.

 

[Brad Miller]

After dip, next day I did iodine dip and some polyps look better now, but most are dead.
Yesterday, an acan beside where the other one was looked really bad all of a sudden, so I took him out and dipped him, Will iodine him tomorrow and have both in the separate tank now.

I didn’t know that the white parts of the acan is actually the skeleton !
Had some club members over the other day and was enlightened

Can the alk swing do this to the acans ?
Everything was happy until I started less water changes (was doing 10% once a week, now doing 10% every other week, trying to get my nutrients up.)

Should have just let my tank be at what it wants instead of testing as much as I started doing, I guess.
I feel like I’m being a numbers chaser now and getting carried away with it.

 

[Brad Miller]

I read up on Stn/Rtn and that’s what I think I’m dealing with.
Possibly from tank being stable then the alkalinity spike....
I also just remembered the calcium went pretty high at the same time the alk did (has a leak in the dosing line and the 30’ of line drained to the tank)

From what I learned, this bacteria is in all tanks and when coral are stressed, the (brown jelly disease) sets in for the kill and spreads very quickly.
Looks like the 4 acans that were in the same corner all have it now.
Ordered some Melafix and will try and salvage what I can by dipping.
Hope it doesn’t kill many more other ones.

 

[Brad Miller]

UPDATE..
I ended up breaking out my 3 volumes from Julian Sprung....

I cut away the exposed skeleton as much as I could on the first acan (was the worst) dipped in Melafix (using the dosage in the instructions for a coral dip, rinsed and placed back in display tank.
The others I just dipped in the Melafix, rinsed and put back in the display tank.
WOW...all cured and looking heat again, the worst one took a bad hit, but he too is doing really well now !