Soooooo, RTN

Scdell · Mar 30, 2019

I've noticed for me it always happens at night when the lights go out??? Always wake up to it. Anyone else?

Auto-pilot · Mar 30, 2019

Scdell said:
I've noticed for me it always happens at night when the lights go out??? Always wake up to it. Anyone else?

Does it happen to you often??? Do you have any pictures to share??

Scdell · Mar 30, 2019

Not often. But when it does it's always at night. And no pics. Not into taking pics of bad things.

WWIII · Mar 30, 2019

Yep. Every time I've had a frag go poof it was overnight. Wake up, go check the tanks, do a double take and see a white piece of calcium carbonate with ugly flesh falling off where a beautiful acropora used to be. Never seen one go from good as gold to gone during the day/evening.

Auto-pilot · Mar 30, 2019

Ive not experienced alot of rtn, Ive had STN though. in my case its only at the bottom of my sps corals. its due to not enough flow and low light.

Scdell · Mar 30, 2019

Auto-pilot said:
Ive not experienced alot of rtn, Ive had STN though. in my case its only at the bottom of my sps corals. its due to not enough flow and low light.

I have plenty of flow and light.

Scdell · Mar 30, 2019

WWIII said:
Yep. Every time I've had a frag go poof it was overnight. Wake up, go check the tanks, do a double take and see a white piece of calcium carbonate with ugly flesh falling off where a beautiful acropora used to be. Never seen one go from good as gold to gone during the day/evening.

Kinda wonder why?????

Auto-pilot · Mar 30, 2019

Scdell said:
I have plenty of flow and light.

Yeah I don't think that's your problem at all....... After reading about all these biological things in the aquarium maybe it has something to do with that, or possibly a Ph swing. I know that ph can drop at night

stacksoner · Mar 30, 2019

Does this mean it's caused by something going on during the daytime?

Auto-pilot · Mar 30, 2019

slewrock1 said:
Does this mean it's caused by something going on during the daytime?

you think so???? why????

WWIII · Mar 30, 2019

Scdell said:
Kinda wonder why?????

Yeah I do wonder why! Lol. I've probably lost a half dozen through rtn over the past couple years. All but 1 were new frags, less than a few days old that I can remember. I chalk it up to that, but still doesn't explain why it happens at night.

Probably something to do with light/dark, either with the critters causing rtn or with the coral itself. I really have no idea? With STN, it seems to progress just as much during the day as at night, but hard to tell exactly without time lapse video.