haze152 Posted January 30, 2014 Share Posted January 30, 2014 So over the last 3 days I had an Alk spike from 7.8 to 12 back to 8 in 48 hrs is that enough of a swing to cause RTN? Is all I can do at this point is cut small frags and toss the colony? What else could have caused the RTN? Quote Link to comment Share on other sites More sharing options...
victoly Posted January 30, 2014 Share Posted January 30, 2014 Nothing else caused it. A swing of 4 is almost assuredly the cause. Sometimes you can mitigate the damage by fragging the tips, like you said. Quote Link to comment Share on other sites More sharing options...
haze152 Posted January 30, 2014 Author Share Posted January 30, 2014 That's what I was afraid of. Just hoping the tank does not crash at this point. So far only 3 acros have RTNed. Quote Link to comment Share on other sites More sharing options...
Juiceman Posted January 30, 2014 Share Posted January 30, 2014 That much of a swing can definitely do it. Dip and or Frag is about all you can do to save everything. Quote Link to comment Share on other sites More sharing options...
haze152 Posted January 30, 2014 Author Share Posted January 30, 2014 Last question I order some SPS that will be here tomorrow and I do t have a QT planing on building with my new tank. Will the new frags be okay since they where not in the tank during swing? Quote Link to comment Share on other sites More sharing options...
ckyuv Posted January 30, 2014 Share Posted January 30, 2014 You should be fine if the swing is what caused it Quote Link to comment Share on other sites More sharing options...
+etannert Posted January 31, 2014 Share Posted January 31, 2014 I would do carbon and a water change before adding the new colonies. I've seen and heard that the old skin sloughing off can trigger a new RTN event on a previously healthy colony and that dying colonies can let off a chemical that tells other corals to "jump ship." Quote Link to comment Share on other sites More sharing options...
haze152 Posted February 3, 2014 Author Share Posted February 3, 2014 Good news and news. The RTNing has stopped good news. Bad news I lost about 60-70% of my colones. The new corals from aqua SD have been In the tank for 5 days with no RTNing. Quote Link to comment Share on other sites More sharing options...
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