I considered this a blacknose dace but after looking into it I'm thinking its a longnose dace. Somewhere it mentions that they're the widest distributed minnow species. Just looking for confirmation and to ask if the black bumps are normal or caused by a disease or something else.
Thank you.
Dace
Started by
Guest_will_*
, Aug 08 2012 07:40 PM
13 replies to this topic
#5
Guest_exasperatus2002_*
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Posted 09 August 2012 - 12:18 AM
Thats a bad case of black spot. Same as the BND's I posted above. I read one article that said its not treatable but I wonder how true that is. maybe with jungle labs anti parasitic pellet food or some other medication for other parasites, not bacterial or fungal. Soak some food in it & then feed it to them.
Its a worm that hides under the skin waiting for a bird like a king fisher to eat the fish, it matures in the bird, lays eggs, poops the eggs out, snails clean up the mess, eggs hatch in the snail, Fish eats snail & young worms find their way into the minnow. and the cycle repeats.
Its a worm that hides under the skin waiting for a bird like a king fisher to eat the fish, it matures in the bird, lays eggs, poops the eggs out, snails clean up the mess, eggs hatch in the snail, Fish eats snail & young worms find their way into the minnow. and the cycle repeats.
Edited by exasperatus2002, 09 August 2012 - 12:21 AM.
#7
Guest_Kanus_*
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Posted 09 August 2012 - 01:04 AM
That is indeed a longnose dace. And if I remember correctly from parasitology class, black spot worms cannot be transferred fish to fish but need a definitive host after a fish (usually a bird)in order to survive/further develop.
#9
Guest_smilingfrog_*
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Posted 09 August 2012 - 05:05 PM
Its a worm that hides under the skin waiting for a bird like a king fisher to eat the fish, it matures in the bird, lays eggs, poops the eggs out, snails clean up the mess, eggs hatch in the snail, Fish eats snail & young worms find their way into the minnow. and the cycle repeats.
Does the fish eat the snail? I thought the parasite just developed to a certain point in the snail, then left and sought out a fish for the next stage of its lifecycle.
#10
Guest_Skipjack_*
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Posted 09 August 2012 - 07:10 PM
Many say it is untreatable. I have seen fish clear up a bit just by being in a tank, and breaking the cycle. I said a bit. Meaning that it did not all go away. Either it's life cycle is so long that few fish outlive all of the blackspot cysts, or the pigmentation takes a long time to go away. But they can clear up a bit. My tanks were always fairly heavily salted.
#12
Guest_gerald_*
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Posted 10 August 2012 - 02:49 PM
No need to kill the snails in your tank, if they're tank-raised snails that have never been exposed to poop from a fish-eating bird (which could contain blackspot fluke eggs) then they have no effect on spread of blackspot. I think Smilingfrog is correct that the free-swimming cercaria stage of blackspot flukes leave the snails and burrow into the fish's skin, so the fish does not need to eat a snail to get infected.
I've heard that it's easily treatable. First, you must kill off any snails in the tank, as that's a key part of the worm's life cycle. Then, just treat with salt and antiparasitic medicine.
#13
Guest_will_*
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Posted 15 August 2012 - 04:24 PM
I caught some creek chubs from the same location that had a few of the spots in the dorsal and tail fins, like in the pictures of the blacknose. It seems like the dace I catch are always on the bottom and the chubs spend more time suspended. Maybe the proximity of the snails is important for the parasite interaction. Does It seems like a bad case like that might be caused by fish to snail contact or can a small fish possibly eat the parasite?. The area I catch them in is also very small, contained and has fresh water flow.
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