Help - what is going on here?

[kilnakorr]

So I just got home and saw this:



Everything looked fine yesterday and I didn't notice it earlier today.
It seems to only have affected this area or these 3 pieces.

Can sometell me what it is, and should the corals be removed?

 

[vetteguy53081]

So I just got home and saw this:



Everything looked fine yesterday and I didn't notice it earlier today.
It seems to only have affected this area or these 3 pieces.

Can sometell me what it is, and should the corals be removed?

Those are aptasia anemone which are considered as pests and will sting coral and multiply like mice
Using a syringe, inject either lemon juice or preferably kalkwasser powder mixed with tank water into a paste the consistency of toothpaste and inject into the very center core of the aptasia and it will melt away

 

[shakacuz]

Those are aptasia anemone which are considered as pests and will sting coral and multiply like mice
Using a syringe, inject either lemon juice or preferably kalkwasser powder mixed with tank water into a paste the consistency of toothpaste and inject into the very center core of the aptasia and it will melt away

where do you see the aiptasia? i just see RTN on some SPS..

OP, immediately check water parameters. definitely try and frag the parts where there is still life and dip in iodine.

 

[kilnakorr]

where do you see the aiptasia? i just see RTN on some SPS..

OP, immediately check water parameters. definitely try and frag the parts where there is still life and dip in iodine.

Thanks. I thought that was it.
I know its called 'rapid' for a reason, but never thought it could happen so fast.

I'll check the parameters, and have already removed the infected corals.
It seems to only be at this specific place though, so doubt its a general water issue.

 

[shakacuz]

It seems to only be at this specific place though, so doubt its a general water issue.

have there been any changes recently? new lighting, new corals?

 

[Viva'sReef]

Thanks. I thought that was it.
I know its called 'rapid' for a reason, but never thought it could happen so fast.

I'll check the parameters, and have already removed the infected corals.
It seems to only be at this specific place though, so doubt its a general water issue.

It's possible you have Dino's. If it's Ostreopsis Dino's those are super toxic and will cause RTN

 

[Tonycass12]

Definitely RTN. birdsnest goes super fast when this happens usually from a big parameter swing. Test and possibly do a waterchange based on your results. Cut whats left of those corals down to frags only keep what still has tissue on it or the rest of it will be skeleton shortly.

 

[kilnakorr]

have there been any changes recently? new lighting, new corals?

Not for some time.
Did make a slight adjustment on the flow yesteday.

It's possible you have Dino's. If it's Ostreopsis Dino's those are super toxic and will cause RTN

Can't really say. As I understand, this can happen in low nutrients and looks like slimy diatoms. Nothing visual to noticed, and NO3 is around 10 and PO4 0.06. Been running like this for a long time.

Definitely RTN. birdsnest goes super fast when this happens usually from a big parameter swing. Test and possibly do a waterchange based on your results. Cut whats left of those corals down to frags only keep what still has tissue on it or the rest of it will be skeleton shortly.

Tests shows no big swings, and I can not see how a big swing could have happened.
Already removed the corals.


Temp: 25C
PH: 8.10 - 8.25
Salinity: 1.025 (was a bit low a couple of weeks back, so have raised this slowly)
Alk: 7.9-8.1 (high low readings the last 3 test over the week)
Ca: 420
Mg: 420