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    Thread: Anchor Worm

    1. #1
      Hope J is offline Senior Member
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      Anchor Worm

      Hi everyone! Sorry it's been so long since I've posted, sometimes I get stressed and just drop off the face of the Planet. Anyway, Pandemica has a Anchor Worm I think. I don't have the proper net to catch her nor do I have a big enough bin to put her in for closer inspection/removal of it. I did my first dose of Dimilin X last Saturday and did another one today. My question is: What temperature does the water have to be for it to work? I've been looking online and on the bottle but I haven't found a temperature range and I need to know because we are up and down on weather which makes treatments and water changes difficult. Thank you!

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    2. #2
      Hope J is offline Senior Member
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      I forgot to add, there haven't been any new fish or plants put in that pond for at least 2 years so I think it came from a frog? They hang out in the pond in the summer.

    3. #3
      fly4koi is offline Senior Member
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      So Dimillin X interupts the molting process, and there are only certain stages in the life cycle that the worm molts. You need to treat the pond every 5 days for at least for 2 month to get rid of them, because typical life cycle is 18-25 days, and the female once matured can live on the host for 30 days and continuously producing eggs.

    4. #4
      Hope J is offline Senior Member
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      Quote Originally Posted by fly4koi View Post
      So Dimillin X interupts the molting process, and there are only certain stages in the life cycle that the worm molts. You need to treat the pond every 5 days for at least for 2 month to get rid of them, because typical life cycle is 18-25 days, and the female once matured can live on the host for 30 days and continuously producing eggs.
      Thank you, I didn't know that
      Everything I have seen so far says 3 or 4 treatments. Thank you for the information.

    5. #5
      fly4koi is offline Senior Member
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      Quote Originally Posted by Hope J View Post
      Thank you, I didn't know that
      Everything I have seen so far says 3 or 4 treatments. Thank you for the information.
      The life cycle is faster when the water is warmer, given now it's just spring perhaps treating longer is safer, female can even overwinter on host's body.
      Dimillin X is not toxic to the fish iirc.

    6. #6
      Hope J is offline Senior Member
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      Do you know what temperature Dimilin needs to be at to work?

    7. #7
      fly4koi is offline Senior Member
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      Quote Originally Posted by Hope J View Post
      Do you know what temperature Dimilin needs to be at to work?
      I think temperature is only crucial in relations to the life cycle length, meaning, colder = treat for longer.

    8. #8
      Hope J is offline Senior Member
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      Quote Originally Posted by fly4koi View Post
      I think temperature is only crucial in relations to the life cycle length, meaning, colder = treat for longer.
      Thank you! That is what I needed to know. I appreciate your help and will treat for 2 months instead of 1.

    9. #9
      kdh is offline Senior Member
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      what is your water temperature?

    10. #10
      Hope J is offline Senior Member
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      Quote Originally Posted by kdh View Post
      what is your water temperature?
      As of right now 50° Fahrenheit. I did the second dose yesterday and I know the temperature was warmer because we had some warm days and mild nights. I wanted to do a full water change over 2 days but ran out of time before it got cold again.

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    11. #11
      fly4koi is offline Senior Member
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      According to the reference, they don't mature unless water if 68F, and females start producing at 57F for 16 weeks.
      My pond doesn't really get all that warm though I'm having anchor worms so I'm not exactly sure what's going on.

      ref: https://edis.ifas.ufl.edu/publication/FA185
      Last edited by fly4koi; 03-18-2023 at 09:36 PM.

    12. #12
      kdh is offline Senior Member
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      The optimal temperature range for Lernaea is 26°C–28°C. If temperatures fall below 20°C, juvenile Lernaea are unable to complete their development, and at 14°C, females will not reproduce. However, adult females can overwinter on the fish host, producing eggs when water temperatures warm up in the spring.

      Found on the same sight you posted

    13. #13
      Hope J is offline Senior Member
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      It's getting down to 34° Fahrenheit tonight which is roughly 1.1° C if I have read correctly (probably not), will this temperature break the entire life cycle?

    14. #14
      Hope J is offline Senior Member
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      And also getting down to 29°Fahrenheit tomorrow night.

    15. #15
      kdh is offline Senior Member
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      Quote Originally Posted by Hope J View Post
      It's getting down to 34° Fahrenheit tonight which is roughly 1.1° C if I have read correctly (probably not), will this temperature break the entire life cycle?
      I would say inhibits the cycle. It well continue once the water warms up.

    16. #16
      Hope J is offline Senior Member
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      Quote Originally Posted by kdh View Post
      I would say inhibits the cycle. It well continue once the water warms up.
      Thank you. I'll treat for 2 months just to be on the safe side.

    17. #17
      Hope J is offline Senior Member
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      Still treating them. I think I've done 6 rounds so far. I found tons of dead ones (I think) in the filters, so it's definitely helped (or look alike strings from the Banana I gave them the day before). I'm going to start cleaning the filters every few days, I was shocked by the number of what looked like adults, dead in the filters. I may try a few rounds of Praziquantel, again out of an abundance of caution. Thank the Universe that I actually quarantine and treat new fish otherwise I'd have 20 Tilapia Fingerlings exposed to Anchor Worms. I took this picture of the things that were in the filters.
      Attached Images Attached Images  

    18. #18
      kdh is offline Senior Member
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      Dont think thats an anchor worm as it has not the familiar anchor head. And they are not nearly that large. They need a host to survive
      Last edited by kdh; 04-04-2023 at 08:13 PM.

    19. #19
      Hope J is offline Senior Member
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      Quote Originally Posted by kdh View Post
      Dont think thats an anchor worm as it has not the familiar anchor head. And they are not nearly that large. They need a host to survive
      Thank you very much. Any idea what it could be besides possibly Banana strings? I know I saw what could only be an Anchor Worm on Pandemica and yesterday a spot on Beast and Thelma where maybe they are trying to attach. A white bump on Pandemicas tail fin and one on Beasts Dorsal Fin. Thelma has a white spot near the back right of her Dorsal Fin. I think I will do a treatment of BSDT for these and see if it helps. None of the Mosquito Fish are showing signs of anything and the new Tilapia and Clams are still separated in quarantine. I'm holding off on all future plans ATM. I just did Dimilin again 3 days ago I think, so I can do a water change and clean filters tomorrow, then do BSDT repeat 3 or 4 days after the BSDT and then use the Praziquantel. That should be safe?

    20. #20
      kdh is offline Senior Member
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      Please read this. It gives you a better understanding about Lernea. Might even read it a couple of times as there is a lot of informative information. https://animaldiversity.org/accounts...ea_cyprinacea/

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