Thanks fellas. Both have very good info and suggetions. I will begin upping
the SG tonight, run carbon, up the alk skim as much as possible and cross my
fingers. Here is hoping. I tell you this, if I loose these corals, I am
going to be really bummed. At least 95% of the corals in my tank are frags,
but I have had them for about a year now, and they are just starting to look
good. Damn, cant just be easy can it??
Thanks again,
Shane
> -----Original Message-----
> From: Payne, James E [SMTP:[EMAIL PROTECTED]]
> Sent: Wednesday, July 25, 2001 12:31 PM
> To: '[EMAIL PROTECTED]'
> Subject: RE: Someone help!
>
>
> > IME RTN kills entire colonies in just a few hours so your
> > problem may be non-rapid tissue necrosis. They may have a
> > bacterial or fungal disease that is likely to improve if you
> > can alter conditions in the system favoring your corals'
> > immune defenses. HTH. www.lonestarcorals.com
>
> This is worth a try. I haven't had the same experience, but I haven't had
> that much experience with RTN (only 2 outbreaks). Both times, the coral
> that started the cascade went very quickly, as you described, but the
> colonies that started going as secondaries took days sometimes.
>
> From what I've heard, the latest thought on the cause of RTN is a stress
> induced autoimmune response. The coral's immune system goes berzerk, and
> it
> destroys itself. The tissue that sloughs off may come into contact with
> other corals and start the same reaction there, hence the rapid spread of
> the problem without an identifiable pathogen. Dipping reduces the
> bacterial
> count on the coral, which may allow the coral to return to a regular
> immune
> response. There's also an antibiotic (forget the name now...starts with a
> 'M' or 'C' I think) that has been reported successful in some cases.
> Note,
> this is all just theory at this point. I don't think anyone's come up
> with
> any sort of conclusive answer yet.
>
> A good way to help determine if RTN is the problem is to see where the
> coral
> is receeding. If it's from the base up, RTN is more probable. If it's at
> random points on the coral, another culprit is probably indicated. Also,
> you can usually see tissue flapping around at the recession line if it's
> RTN
> (IME).
>
> Polyfilter pads do a great job of removing stuff that's bad from your
> water.
> These are a good alternative (or addition) to carbon if you have the
> option.
>
> Since it's generally very hard to cure RTN, I'd go with JhnMfftt's advice
> and try his plan first. Just remember that raising the SG more than
> 0.001/hr can be stressful on sensitive invertebrates like blue linka
> stars.
>
> Best of luck.
>
> James Payne
> [EMAIL PROTECTED]
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