Rapid onset of parasite in flowerhorn, help?

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fishdat

Polypterus
MFK Member
Dec 31, 2014
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Western Canada
So on Sunday my flowerhorn didn't eat eat like he normally does, which was weird, but given his still good colouring and behavior, no cause for concern.

On Monday he started showing paling and skittishness, so I took notice and did a water change and tested parameters. Everything seemed good.

On Tuesday he was bottom sitting and twitching occasionally, so I decided I'd grab medication from work the next day.

Wednesday he was pale and twitching, bottom sitting, and just clearly sick. I medicated with Prazipro as I wasn't certain what kind of parasite I was dealing with.

Thursday, condition worsens.

Today? Large white worm hanging out of anus, what appears to be ulcers on his kok and near his mouth, and continued deteriorating condition.

He's 5" in a chamber in my sump on my 210 gallon tank. I was just about to move him up to the main tank as I had finished growing him out, too. Diet is New Life Spec. and Hikari pellets, live worms (horn and silk mainly, with some wax), and frozen food/veggies. Nitrates don't generally go above 30ish ppm, temp is 80F, pH 6.5, and 70 gallon water changes at least once weekly. Any fish I add I quarantine and preemptively medicate and the current stock in the 210 is one 14" red tail giant gourami, one 9" oscar, one 5" rotkeil severum, one 5" jack dempsy, one 5" synspilum, one 4" electric blue jack dempsy, one 4" flowerhorn, one 5" eclipse cat, and some large bichirs. Filtration is a powerhead doing a few thousand GPH with a monster spongefilter on it and my pump in my sump also has a filter chamber.

Thoughts on best course of action? My phone isn't working currently so I can't post pictures unfortunately.
 
It could be Camallanus which is a nematode. Praziquantel will have no effect on nematodes. Sounds like you may have a bacterial infection, too, perhaps Columnaris. pH is kind of low. Are your ammonia levels below detection levels? My advice would be to find a vet.
 
It could be Camallanus which is a nematode. Praziquantel will have no effect on nematodes. Sounds like you may have a bacterial infection, too, perhaps Columnaris. pH is kind of low. Are your ammonia levels below detection levels? My advice would be to find a vet.

In my experience Camallanus is red, while this worm is white. I am not aware of a white variation of Camallanus. I should have mentioned worm colour, my apologies. A secondary infection due to stress and a weakened immune system wouldn't be shocking, but it's an easy fix once the parasite is dealt with thankfully.

I live in a rainforest region so the water is quite soft, but flowerhorns are bred here so the local fish should be use to it. Tank is fully cycled, with no ammonia or nitrite within detectable levels.

There are no vets that deal with fish in my city or the surrounding ones. Access to medication isn't an issue for me thankfully.
 
Picture of the worm?
Is the worm flat,segmented or is it round?
The prazi probably pushed the worms out, so I'd keep treating. Perhaps some sort of tape worm. The ulcers, I am not sure but maybe as already suggested a bacterial infection as well or they could be HITH related?
 
I agree with coryloach, pictures of the worm and all infected areas would help.
Without seeing, very hard to judge.
Also, is this the only fish in the tank, what is the average water temp?
 
Picture of the worm?
Is the worm flat,segmented or is it round?
The prazi probably pushed the worms out, so I'd keep treating. Perhaps some sort of tape worm. The ulcers, I am not sure but maybe as already suggested a bacterial infection as well or they could be HITH related?
As I said, I don't have any way to post a picture currently. It's wider at end furthest out and thins out closer to the anus.

Shouldn't br HITH, he gets a varied diet and water quality nevet drops.
 
Again, no way to currently post pictures and the other fish in the system are listed in the OP. As is temp, which averages 80F.
 
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