zoanthid eating nudibranchs life span

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Does anyone know what the life span of a zoanthid eating nudibranch, including egg hatch, without any zoanthids in the tank?
 
found this online

What Works
Salifert Flatworm Exit does work on adults using 1 drop for every 128oz or basically 1 drop every gallon of your tank. I haven't had the courage to dose the tank fully as flatworms and nudis give off toxic substances in the tank and I have far more to loose than gain by a full tank dose at this time. If you use the recommened dosage (4 drops every 5 gallons) in tests nudis die as well, but I have seen a couple get slow and take quite a while to die off leading me to believe they could survive at that dosage. Using my dosing none survive and they die very quickly usually within a minute.

Pro Coral Cure works just as well on the hatched nudis. They seem to die off in about 5 minutes. I would think a 15 or 20 minute dip will do the trick.

Furan2 does not work against these nor is it designed to work against these. However, it is a valid treatment (at least for many no scientiffic proof however) for zoa pox and I recommend dipping with this substance as well.

Hyper Salinity works as well and first deaths occur after about 20 minutes. Problem with the treatment is it will likely kill or harm incoming zoas and other corals.

QT... no suprise here waiting 4-6 weeks before moving any living thing into the main tank can save you hassle down the road. QT and good obeservation is still probably the safest form of pest control in general.

Capture and Removal: This technique will keep your zoas alive indefinitely and done religiously will likely cull the population until they are all dead. I have read numerous threads and have at least two people who ridded themselves of these annoying critters using this method. More details on this below.


Capture and Removal
The easiest capture technique is to use the following: Handheld Blacklight, Tweezers, Latex or Nitrile Gloves
  1. Wait for the lights to go out.
  2. Kill the flow in the main tank.
  3. Turn on the black light.
  4. With glove on gently touch any open zoas in the area you are searching. This will cause them to retract.
  5. Now with one hand shine the black light over the zoas and with the other look for glowing critters
  6. When you find one, tweeze and remove.
Eggs
The life span of the eggs seems to be about 2-3 weeks and to my knowledge no known treatment will kill them. I would suggest performing QT or dipping zoas regularly for at least 4 weeks. The eggs will in almost every case be attached on or near a zoa colony but they will deposit eggs on the rocks near zoas so those can be considered "infected" as well.


Additional Benefits
I have found doing research that performing a dip of Furan2, Pro Coral and Flatworm Exit will likely nuke pretty much any annoying critter you don't want in your tank short of egg stages. Also, using a Flatworm Exit and Furan2 bath for Fish Only looks to be a good precautionary treatment as well.

Well that is all I have to report for now. Questions, Comments, Concerns?
 
Eggs
The life span of the eggs seems to be about 2-3 weeks and to my knowledge no known treatment will kill them. I would suggest performing QT or dipping zoas regularly for at least 4 weeks. The eggs will in almost every case be attached on or near a zoa colony but they will deposit eggs on the rocks near zoas so those can be considered "infected" as well.

Thats basically what I did. I moved all my zoas to a QT tank and fresh water dipped them every 4-5 days for several weeks and then put them back in there tank. Never saw the nudis again.
 
A friend recently found some nudi's on some zoanthids in his tank.
What the plan was to remove all zoanthids from the tank and deal with the treatment in another tank.
What I was wondering is, how long would he have to let the main tank remain zoanthid free, before all the nudi's hatched then starved?


FYI, I dipped some infected colonies in FWE at 4x the recommended dose and watched nudi's basicly explode apart in seconds. Very satisfying.
I also dosed my tank at that rate.
 
I would let the MT let afflo for 6-8 weeks for complete starvation of adults, juvies and to stave newly hatched and hatching babies during that time
 
How big are these guys ??

I've had some zoas melt away/disappear, along with some purple haze montipora start to suffer RTN, I pulled the suspected corals out and looked them over under a very bright light with a jeweler's loupe and seen nothing. Some tiny pods but nothing like in the Google pics. I dipped them in Revive just to be safe but again nothing jumped out at me floating around in the container I used.

Is it true that they glow under a black light ??
 

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