Schwack Posted February 10, 2021 Share Posted February 10, 2021 Long story short, I ended up with camallanus worms in at least two tanks. Since my fish were no longer eating, I opted to dose twith levamisole. Per the instructions from Select Aquatics, I dosed twice over two days (25% water change + 1 dose, 25% water change + 1 dose.) I used the 15 gallon spoon for my 20 gallon long (it holds ~16.5 gallons of water after substrate, hardscape etc.) so I'm reasonably certain I didn't overdose. No inverts were impacted, and my remaining fish have been passing worms like crazy. Since then all my tank's inhabitants have been acting normally, albeit with reduced appetites. However, since the levamisole treatment I've been able to detect ammonia in my tank. It's been cycled and running for close to a year with no issues and the only change I've made in the last several months is the application of the de-wormer. I've been monitoring it over 4 days now, and I'm consistently seeing detectable and rising ammonia levels in the water. I vacuumed the substrate thoroughly for each water change to help remove any dead worms, and to remove rotting organic matter in general. I would be very surprised if built up organics were the cause of the current ammonia spikes. The tank is very lightly stocked, thanks to the worms, but there's clearly not enough of a working bio filter to keep up. I've tried bringing media and filters from other cycled tanks in to help things catch up, but that's been no help. My concern is that the levamisole has wiped out my bio filter and since it's still in the water, is wiping out any new bacteria I introduce. I'm at a bit of a loss in terms of ways to remove the medication from the water. I had some carbon on hand, and I've added that to my HOB, but I'm not sure if there's more I could be doing. Other than carbon and water changing, is there anything I can do to speed up the process of clearing the levamisole from the tank? It seems like its presence is wiping out any beneficial bacteria I introduce. I'm also not able to find anyone whose experience with levamisole mirrors my own. Most people seem really happy with the treatment and don't experience a cycle crash. Any thoughts on what might've caused my treatment to go haywire? Thanks in advance for any advice! Battling these worms has had me bummed out for weeks now. I felt like I finally had the upper hand once I managed a diagnosis and treatment, but it's gone all pear-shaped on me. Link to comment Share on other sites More sharing options...
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