Strange SPS death

[blueheaven]

Hi guys,

Over the past 2 days, my SPS started RTN and the strange thing is that they have been growing well and I've not added anything new or did any water changes.

It all started with a mille colony I had and then it spread to another mille right beside it and then it spread to a pink mille beside that. Now it had started to affect my tenuis which is beside the pink mille.

I couldn't spot any parasites on the dead colonies or on those which are affected.

What could be causing this? SPS disease?

[Reefaholic]

Welcome to STN club

[madmac]

Hi guys,

Over the past 2 days, my SPS started RTN and the strange thing is that they have been growing well and I've not added anything new or did any water changes.

It all started with a mille colony I had and then it spread to another mille right beside it and then it spread to a pink mille beside that. Now it had started to affect my tenuis which is beside the pink mille.

I couldn't spot any parasites on the dead colonies or on those which are affected.

What could be causing this? SPS disease?

Did it start at the tip or from the bottom or somewhere the middle.? any pics.

I lost one that began from purple to brown to STN from base up... gave up trying to find the reason for it. It was an isolated case.

I'm guessing whatever it is, its in your water as its spreading fast. Probably toxins... maybe prudent to change out water, run new carbon, lower temps for the time being.

[blueheaven]

It starts off from the base in most cases

Think I'll do a water change and run carbon

[madmac]

base up is commonly attributed to phosphate wicking from the rock it is attached to. The coral stoney skeleton wicks up the PO4 leech out from the rocks. Sometimes the base shows a green tint, and sometimes not... most of these actually result in STN and not RTN though.

[blueheaven]

Yeah I found it kind of strange as it seems to be spreading to the one next to the affected colony.

If its phosphate leech, then I think it should be more random right?

[madmac]

Umm, it shouldn't be random at all.... not if they're all around the same rock area so it "passes" from one to another next to it.

Up there you said, no water changes... it wasn't too long in-between, I hope.

[damienkee]

any new update? did the rtn stop?

[blueheaven]

It spread to my tenuis and I took out the whole colony and fragged it

So far it had stopped there but I'm still waiting for the tenuis frags to stabilise and see how it is

[royal gramma]

What your KH? Any drastic fluctuation?

[blueheaven]

Nope all parameters are fine

KH is at 10dKH

[damienkee]

wow! this really sounds scary!

could tat b a RTN tissue falls on another colony cozing the virus spead to e colony?