What's happening?

[JVan82]

So I have a new frag and it was fine last night now it's turning white. Thoughts

Sent from my SM-G950U using Tapatalk

 

[Cheapreef]

It's not turngin white, looks to me like it lost it's flesh. Was there a big change in Alk from the tank you got it from to yours, or a spike in Alk that'll do it.

 

[JVan82]

I'll have to check alk, was 9.8 last I checked it, last week. I did 4 gallon water changes fri, sat, and sun. Could have have caused this?

Sent from my SM-G950U using Tapatalk

 

[JVan82]

So just checked alk is 10.4 was 9.8 when I tested last on the 5th.

Sent from my SM-G950U using Tapatalk

 

[jda]

STN. It is very likely going to continue to die. Sorry.

This is more likely from the transfer than the alk if you have not had it long. Alk is not an issue at 9.8 to 10.4 unless you are stripping nitrate and phosphate out of the water and keeping them artificially low.

How is your coralline algae population? Acros are hard until tanks are mature enough to grow coralline like crazy.

 

[Tripod1404]

Do you know the alk of the tank that you purchased the acro from? If they were keeping their at, say 8dKH, a swing from 8 to 10.4 might be too much. That is one drawback of keeping the alk high. Most stores dont keep their alk levels that high.

 

[JVan82]

I'm not sure what their alk is, have to ask. But the other sps frag I have are from the same place.

Sent from my SM-G950U using Tapatalk

 

[Lsufan]

If a frag is healthy when u get it then it can handle the acclimation process better then a frag that may not be perfectly healthy when u get it. So say the tank the frags came from was 8 dkh, the healthier frags handled the swing in params better then the frag that wasn’t so healthy to begin with.

 

[JVan82]

If a frag is healthy when u get it then it can handle the acclimation process better then a frag that may not be perfectly healthy when u get it. So say the tank the frags came from was 8 dkh, the healthier frags handled the swing in params better then the frag that wasn't so healthy to begin with.

Explains why one survived and the other didn't...

Sent from my SM-G950U using Tapatalk

 

[Unicorn2093]

I would lower the dKH to 7-9. I have experienced stn at even 10. But many of my corals have survived stn as long as the dKH has been corrected soon enough.

 

[JVan82]

I would lower the dKH to 7-9. I have experienced stn at even 10. But many of my corals have survived stn as long as the dKH has been corrected soon enough.

Stn?

Sent from my SM-G950U using Tapatalk

 

[Unicorn2093]

Slow tissue necrosis

 

[JVan82]

Slow tissue necrosis

Thanks, I'll get my it back into the 9s.

Sent from my SM-G950U using Tapatalk

 

[Bpb]

Alkalinity CAN be kept up in the 9-12 range with acropora, but there's little benefit. You're just making it harder on yourself. Everything becomes suddenly MUCH easier to keep if you just lower alk to 7-8 range. Couldn't tell you scientifically why. But I can tell you it's a distinct observation in both my own and others experience


Sent from my iPhone using Tapatalk Pro

 

[JVan82]

I wasn't really try to boost alk, with the water changes, was a mistake on my part I should have spaced them out instead of 3 consecutive days. Thanks everyone for the help!

Sent from my SM-G950U using Tapatalk

 

[shih87]

IMHO...
A coral last less than 6 months in your tank to call STN or RTN is quite misleading. This case more like transfer process pressure than simple Alk fluctuations to me. It happen to most of us once or multiple times