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  1. #1
    Senior Member Rank = Jussai smartin's Avatar
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    OMG flukes again - Lernex?

    So after a few weeks of warm water temps the fish seemed in good health, earlier treatments for Trich and 3 x double dose of Flukasol for flukes i thought things were ok, however last week i saw some tell tale signs of fin flicking and the odd flash and past few days my dotisu showa looking lethargic and clamped up, this morning i found him on the bottom barely moving and clamped up, managed to net him and took 2 scrapes, first scrape 7 fluke second scrape counted 14 unbelievable, feel really bad for him, thank fully my Lernex from Gazkoi arrived yesterday, this is a new treatment for me, after reading RS2000 issues i thought maybe a change of product and ingredient is required, so Lernex is in the pond as we speak, fish swimming around in circles and twitching about and some flashing.......
    Lernex instructions are ok but unsure what it is referring too as it says leave the UV and Ozone off ? my UV is off but Ozone ? not seen this before on instructions ?? looks like its a 14 day wait before i can re dose if needed which i guess i probably will do, there is no mention of feeding on instructions so assume its ok to feed later today ?? any help appreciated on this product.... unsure of fluke type - what do you think ??? third pic is clearest


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    Last edited by smartin; 03-07-2020 at 12:57 PM.
    2200 gallons, infinity window, BD
    Evolve 4000 combi amalgam UV
    10k,20k AF pumps
    Skimmer trickle.

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  3. #2
    Senior Member Rank = Supreme Champion freddyboy's Avatar
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    look like flukes to me 3rd picture

  4. #3
    Senior Member Rank = Jussai smartin's Avatar
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    Quote Originally Posted by freddyboy View Post
    look like flukes to me 3rd picture
    Hi Fred, yes flukes for sure but unsure if skin or gill..... so fed up with this, hopefully Lernex will eradicate them...
    2200 gallons, infinity window, BD
    Evolve 4000 combi amalgam UV
    10k,20k AF pumps
    Skimmer trickle.

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  6. #4
    Senior Member Rank = Grand Champion RS2OOO's Avatar
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    Hi mate,
    Sorry to hear of the grief your having.

    You've been buying a few fish this year so that's likely to be the culprit.

    Bottom pic is almost certainly a pregnant skin fluke as I can see the baby fluke inside.

    Obviously every pond is different and I assume there's different strains of flukes, but normal Lernex smashed them out the park for me last year.

    Lernex won't affect the filter bio so keep feeding if the fish are asking for food.

    If you have enough left for a 2nd dose then i would use it. As for when to administer, I can't advise because nobody knows what affects it will have on someone else's pond, but me personally, if fish are looking strong and healthy and parameters are good I would add another dose gradually over a few hours whilst monitoring the fish for any adverse reaction towards the end of the 6th day after the first dose.

    6th day is in case you have any egg laying gill flukes and based on current temps of 20C plus.

    Good luck.

    Sent from my Pixel 2 using Tapatalk

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    Senior Member Rank = Yonsai Twhitenosugar's Avatar
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    Thanks for the info RS.

    I'm in the same boat as Smartin. I put lernex in on Tuesday and am wondering if I should retreat in 6 days or 14 days as they instructed.

    So far I've had 2 fish jump out the pond (which colombo warned of), so now have covers on. Smartin if you have jump guards or winter covers, I'd definitely put them on.

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  10. #6
    Senior Member Rank = Yonsai Koiz's Avatar
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    Quote Originally Posted by Twhitenosugar View Post
    I put lernex in on Tuesday and am wondering if I should retreat in 6 days or 14 days as they instructed.
    You definitely have skin flukes - which is good news! They are live bearers, and as RS said, you can see the baby within the adult in the 3rd photo. I've got scope photos of a baby within a baby within an adult. It's scary to see! Last year I had Gyrodactylus Sproston confirmed by Fiona McDonald (creator of FlukeSolve). These are known to be prazi resistant, and sure enough, 4 lots of FlukeSolve (Prazi based) - even with 0.89% salt, did not get rid, and come March this year they were back. I used Lernex Pro (Nitroscanate, Praziquantel & Flubendazole) - heavy duty stuff, but hopefully the standard Lernex will do the job for you.

    Ozone systems are used to remove things like colourings, chemical residues, bacteria, parasites and viruses, so they are turned off during treatments to prevent them stopping the treatment from working - the same reason a UV needs to be turned off.

    If you have a drum filter, please also be sure to by-pass it for as long as poss as they are notorious for removing powdered treatments from water, even if you think you've dissolved it thoroughly. Better to not risk the treatment failing! If this means you cannot run your filter system at all, then best not to feed until all running again.

    Definitely cover your pond with nets or polys if you have them. During my 2nd Lernex, my Yamabuki got pushed out over the infinity window where they were all madly dashing about - and I had my metal framed nets on! When I treat now, I put extra weights over them to make sure the frames don't lift.

    I re-treated with Pro on the 7th day, and preceded my first Lernex Pro treatment with two days of consecutive CT to strip back mucus to ensure the Lernex got a good shot at the little critters. It worked, but the fish took a good knocking, and I then had an outbreak of Costia, so do please be vigilant for opportunistic outbreaks of other parasites after your Lernex finishes. Skin flukes should, in theory, be easier to kill than Gill Flukes - which lay eggs that cannot be killed until they hatch, and getting the timing of that cycle just right so you wipe out the new ones before they lay more eggs is not at all easy as it's temp dependant. Fingers crossed, you have only the Skin Flukes, and you'll nuke 'em with just the two doses of Lernex.
    11,440L Raised Pond, BD, Oase ProfiClear, Bitron 55W, 2x10k Aquaforte Varios, Skimmer to Waterblade

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  12. #7
    Senior Member Rank = Jussai smartin's Avatar
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    Thanks for your replies everyone, I have a net on my pond.... ok understood RS and Koiz I will retreat on day 6 or 7 as fish are healthy enough to take it I believe, I could turn off drum but want Lernex to go through the system in case there any flukes within the filtration system.
    Fingers crossed 🤞 will report back next week was shocking to see so many on such a small fish.

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  14. #8
    Senior Member Rank = Yonsai Koiz's Avatar
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    Quote Originally Posted by smartin View Post
    I could turn off drum but want Lernex to go through the system in case there any flukes within the filtration system.
    Yes - this is a tricky one. When I did my treatments I had a Nexus with a Drop In Draco Drum. This doesn't have a by pass facility, so I removed the whole drum, covered the centre with filter foam (which worked fine, just needed rinsing every day), and then thoroughly cleaned the Draco with a PP solution and used brick acid to clean the screen (as recommended by Tony of Draco). Whole thing came up like new . I now have an Oase ProfiClear, so when it comes to bypassing that drum during such treatments, I just have to remove a screen or two (not done it yet, so hope it works!). What drum set up do you have?
    11,440L Raised Pond, BD, Oase ProfiClear, Bitron 55W, 2x10k Aquaforte Varios, Skimmer to Waterblade

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  16. #9
    Senior Member Rank = Jussai smartin's Avatar
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    Quote Originally Posted by Koiz View Post
    Yes - this is a tricky one. When I did my treatments I had a Nexus with a Drop In Draco Drum. This doesn't have a by pass facility, so I removed the whole drum, covered the centre with filter foam (which worked fine, just needed rinsing every day), and then thoroughly cleaned the Draco with a PP solution and used brick acid to clean the screen (as recommended by Tony of Draco). Whole thing came up like new . I now have an Oase ProfiClear, so when it comes to bypassing that drum during such treatments, I just have to remove a screen or two (not done it yet, so hope it works!). What drum set up do you have?
    Hi Koiz
    i have an Evolve 4000 combi which has a Burtons BD300 drum....... unsure how to bypass in all honesty, what i have done is reduced the cleaning time to 30 seconds and lowered switch to increase times between cleans, what you say makes perfect sense about the drum removing the treatments which is a bit frustrating, i have not thought about that until you mention it trouble is i need to keep cleaning as have blanket weed breaking down so i need to get that out of the water else i am going to have a right mess...... thanks for your help Steve.
    2200 gallons, infinity window, BD
    Evolve 4000 combi amalgam UV
    10k,20k AF pumps
    Skimmer trickle.

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