Comments on: 10.12.1. Camallanus https://tankstartguide.com Based on Science and Logic Mon, 13 Apr 2026 22:53:32 +0000 hourly 1 By: David Bogert https://tankstartguide.com/10-12-1-camallanus/#comment-3604 Mon, 13 Apr 2026 22:53:32 +0000 http://tankstartguide.com/?page_id=3662#comment-3604 In reply to Luvercrew.

In reply to Luvercrew ………. Safeguard is difficult to overdose. Just use just a smidgen per directions for the food and you should be just fine.

]]> By: Luvercrew https://tankstartguide.com/10-12-1-camallanus/#comment-3599 Sat, 11 Apr 2026 18:37:58 +0000 http://tankstartguide.com/?page_id=3662#comment-3599 Hi there,

I have 1 baby Electric Blue Acara, and 6 baby Congo Tetras that I believe may have these worms. The EBA has a swollen anus and I’m pretty sure I saw a worm sticking out one of the tetras. I have SafeGuard (Aquasol) fenbendazole 200mg/ml for my chickens. Will this work? And what dose should I use? I’m afraid of overdosing them. I have a nerite in there too but I’ll remove it before I treat the tank and put it back after it’s safe again.

]]> By: Dave https://tankstartguide.com/10-12-1-camallanus/#comment-2322 Thu, 11 Sep 2025 01:40:41 +0000 http://tankstartguide.com/?page_id=3662#comment-2322 In reply to Becca.

In reply to Becca ……. Feed fish with Fenbendazole or Levamisole in the food once every week for at least three months. There is no need to change water change schedules.

]]> By: Becca https://tankstartguide.com/10-12-1-camallanus/#comment-2321 Tue, 09 Sep 2025 01:42:43 +0000 http://tankstartguide.com/?page_id=3662#comment-2321 In regards to feeding and water changes
How often should I feed the medicated food and how soon after should I do a water change? Thank you for your time and help!

]]> By: Dave https://tankstartguide.com/10-12-1-camallanus/#comment-2320 Tue, 25 Feb 2025 04:34:32 +0000 http://tankstartguide.com/?page_id=3662#comment-2320 In reply to Cayden.

In reply to Cayden ….. You are doing everything correctly. Just give it time. Camallanus infections can take months to resolve themselves.

]]> By: Cayden https://tankstartguide.com/10-12-1-camallanus/#comment-2319 Mon, 24 Feb 2025 22:33:48 +0000 http://tankstartguide.com/?page_id=3662#comment-2319 Hi Dave, I’ve been trying to use Levamisole to treat Camallanus. I’ve tried both in food and in water (the tank is quite small so I don’t have to use much of the medication; I’m probably dosing many times higher than needed). However, the Camallanus is not responding to either. After around a week of constant treatment, they are still hanging far out from the fish. I don’t know if they are moving, but it seems like they are either unaffected or stuck for some reason. I also don’t know if the fish is even eating any of the food, even though it has had no other source within the past week.

What can I do? Is it normal for the worms to stay hanging far out? By far out, I mean it looks like a majority of the worm’s body is outside the fish, compared at least to some that have fallen out. I spotted one separated worm early on in the treatment, but I have not spotted any others that have fallen off (if they are my fish is probably eating them).

Another thing too, the quarantine tank has a rough air stone. Sometimes, I notice the fish thrashing along the surface, probably to try getting off the worms. Should I be adding more rough surfaces to allow her to scrape and scratch off the worms?

Thanks in advance!

]]> By: Kerstin https://tankstartguide.com/10-12-1-camallanus/#comment-2318 Mon, 24 Feb 2025 06:04:29 +0000 http://tankstartguide.com/?page_id=3662#comment-2318 Thank you so much! I love your website 🙂

]]> By: Dave https://tankstartguide.com/10-12-1-camallanus/#comment-2317 Fri, 21 Feb 2025 03:18:52 +0000 http://tankstartguide.com/?page_id=3662#comment-2317 In reply to Kerstin.

In reply to Kerstin ………. The article has the recipe for the food in it. I have successfully treated shrimp tanks and snail tanks with both levamisole and fenbendazole with no die-offs but I have run across folks in the literature who have had die-offs of snails and shrimp. Don’t use PP for treating anything in the aquarium. You do not need to vacuum to kill the worms. They naturally die outside the fish’s body.

]]> By: Kerstin https://tankstartguide.com/10-12-1-camallanus/#comment-2316 Thu, 20 Feb 2025 06:46:14 +0000 http://tankstartguide.com/?page_id=3662#comment-2316 Hi Dave, Thank you for this article, it is very helpful! All my tropical tanks are infected with this and I’m wondering about my goldfish now too. I think it came from plants I ordered online and added to all the tanks. I have started treating the tanks with levamisole in the water and will start with the medicated food you suggest as soon as I can get it, but what is the recipe/dosing for adding levamisole to the medicated food as well, in case that is needed too? I have mystery snails and amano shrimp in a planted tank with the infected fish, can they (shrimp and snails) stay in the tank if treating it with medicated food with fenbendazole? Also, I read these are sensitive to potassium permanganate, can I treat the tank with PP instead of vacuuming a planted tank to kill the ones free in the tank? (and rather than tearing down the whole tank.) Thank you for your help!

]]> By: Dave https://tankstartguide.com/10-12-1-camallanus/#comment-2315 Sat, 08 Feb 2025 02:45:11 +0000 http://tankstartguide.com/?page_id=3662#comment-2315 In reply to Cayden.

Pecking will get the levamisole into the fish. Levamisole is only slowly soluble.

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