Montipora Confusa / Nudiebranch?

Liknes

Liknes

New member
I noticed yesterday that my Montipora Confusa started to loose tissue at the base...The polyps are out and the frag is looking relatively OK. Could the "fluffy" looking thing on the base of the frag be a Nudiebranch?

The picture was taken this morning before I went to work and the light was still very blue.

tissue-loss.png
 
Look closely there are allot. +1 on getting it out of your tank asap. Btw every lfs I've been to in about 2 months has these. We have to figure something out to stop spreading them.
 
Thanks for the response guys. I will take out this frag... I have mostly acroporas, but I have 2 montipora digitatas and I don't want those to also get attacked...

Wish I had space for a quarantine tank :headwallblue:
 
Liknes said:
Thanks for the response guys. I will take out this frag... I have mostly acroporas, but I have 2 montipora digitatas and I don't want those to also get attacked...

Wish I had space for a quarantine tank :headwallblue:
Click to expand...

I would remove the frag from the plug, cut off any dead areas, inspect with a flashlight and magnifying glass to make sure you didn't miss anything, then place back in tank. In my experience interrupting their life cycle is not that difficult, but of course there is a risk. At least, unlike AEFW, you can see these bastards.
 
Those things wax and Wayne sometimes you won't see any for months and then have a population explosion. If you do see any again I would suggest dipping all montis if you can get them out for a couple weeks.
 
Little bastards we lost 5000 frags to these about 6 months ago, they call them monti eating nudis but we found when there was no montis left they migrated to acros, so mabe they should be called monti prefering nudis, the best solution we found was dipping in ant and wasp killer this kills them eggs and all as a result every single frag and colony is now put through a stringent dipping process..
 
Yup that is definitely them, I was battling these early last year and was successful after a few months. My tank is now healthier and nudi free. Good luck!
 
Spslvr said:
Little bastards we lost 5000 frags to these about 6 months ago, they call them monti eating nudis but we found when there was no montis left they migrated to acros, so mabe they should be called monti prefering nudis, the best solution we found was dipping in ant and wasp killer this kills them eggs and all as a result every single frag and colony is now put through a stringent dipping process..
Click to expand...

ant and wasp killer, do tell more

Revive, Coral RX, Bayer, Lugol's does not kill them. It does help them to detach from the coral. The thing is if there is any crevice. Say between the frag and the plug or the colony and the rock, they will hide in it and lay the eggs out of sight.

I think the OP did well cutting the good tissue off the base and tossing the rest. I would recommend fragging off the digi's as well and killing any tissue left encrusting the rock. Since there is no QT I would place the monti's where they can be visually inspected and any nudis found removed until the cycle has been broken
I would rather have AEFW than MENB, I have had them both and lost way more coral to the Nudi's than the flatworms
 
dadummy said:
ant and wasp killer, do tell more

Revive, Coral RX, Bayer, Lugol's does not kill them. It does help them to detach from the coral. The thing is if there is any crevice. Say between the frag and the plug or the colony and the rock, they will hide in it and lay the eggs out of sight.

I think the OP did well cutting the good tissue off the base and tossing the rest. I would recommend fragging off the digi's as well and killing any tissue left encrusting the rock. Since there is no QT I would place the monti's where they can be visually inspected and any nudis found removed until the cycle has been broken
I would rather have AEFW than MENB, I have had them both and lost way more coral to the Nudi's than the flatworms
Click to expand...

The active ingredient is permethrin 1gram per litre and dip for 2 mins every hour for 5 cycles then the next day just standard mellafix for aefw. also with the permethrin halve the dose if needing to treat thin branching sps
 
I don't know how much work you want to put into eradicating them but I was successful in a small tank (28 gallon) using kalk paste and a tooth brush. It was a labor of love but it worked and has been nearly a year since I've seen a signs of those little Nudi monsters.

I used the tooth brush to gently brush them off coral and then followed up with a squirt of kalk paste around the base of infected corals, including crevices they may be hiding. The kalk past is a virtually the same recipe used to kill aiptasia, e.g. calcium hydroxide, DI water, and vinegar (acetic acid). Add a little calcium hydroxide to vinegar until you get a thick paste. Then thin with water until it's thin enough to be dispensed from a curved syringe (the kind that comes aiptasia killer).

The kalk paste doesn't kill the nudis (or eggs) but agitates them and repels them. They won't return as long as the coral has paste around the base, which serves as a barrier. The paste, if mixed right, will last a day or so. Just reapply when it looks like it's almost gone. And yes, do frequent water changes to deal with the increasing dkh and calcium from what is essentially Calcium acetate. I personally didn't have problem with my chemistry.

Brushing doesn't kill the nudis directly but makes them detach and float adrift. My powerheads would suck them up and ultimately eviscerate them. The eggs did seem to get killed by the brushing as they are soft and delicate.

It was a labor intensive process but after a couple of months, I had saved all but one monti which stn'd from the stress (had more to do with being moved too many times)
 
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