ick or velvet under the microscope
- Thread starter Chicago
- Start date
Deinonych
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I agree. Ich trophonts "tumble" under the epithelium, which is why they are so irritating to fish. Amyloodinium uses rhizoids to affix itself to the fish, and doesn't move when attached.
ThRoewer
New member
Deinonych
New member
Velvet (aka Amyloodinium ocellatum) is a dinoflagellate, meaning it has two flagella (whip-like structures) for locomotion.
http://www.scielo.br/img/revistas/rbpv/v24n1//1984-2961-rbpv-24-1-1-gf06.jpg
Chicago
New member
Thank you for the reply OK so here's my question. Is it possible that that is a dinospores for velvet. I asked because my scribbled has a dusty like appearance and it doesn't really look like crypto..aka saltwater ick. The strange thing is none of the wrasses have any signs of ick or velvet nor does the small blue face angel or even the Chevron tang
Chicago
New member
crazy thing is.. body of my scribble and the foxface have no signs of ick.. and yet they are breathing hard and male scribble is hanging at the top of the tank tonight.. they are all eating well and hungry.. go figure.. I would think this was velvet if not for the footage on the microscope..
ThRoewer
New member
I wouldn't be so quick to discard velvet after the examination of one dead fish. Many parasites leave a dead fish. Cryptocaryon needs a bit of time to leave since it in inside the skin. Amyloodinium just needs to retract it's "straw" and is off to "greener pastures".
Another difference is that Cryptocaryon has to encyst to get to another fish even if it hast to leave early. Amyloodinium, if less than 24 h on the host, can leave one fish and directly infect another.
The only way to be sure would be a live biopsy of the gills (if you have the guts for that).
Another thing: I have never seen fish breathe heavy due to an occult or visible low level Cryptocaryon infection. Usually an ich infection needs to be pretty progressed to cause rapid breathing.
Amyloodinium on the other hand usually starts with affecting the respiratory system heavily before showing on the skin.
I would give these fish a prophylactic freshwater or formalin bath to dislodge eventually present Amyloodinium. If the fish have velvet you should find something in the bath water (maybe strain it to a sufficiently fine micro sieve).
Another difference is that Cryptocaryon has to encyst to get to another fish even if it hast to leave early. Amyloodinium, if less than 24 h on the host, can leave one fish and directly infect another.
The only way to be sure would be a live biopsy of the gills (if you have the guts for that).
Another thing: I have never seen fish breathe heavy due to an occult or visible low level Cryptocaryon infection. Usually an ich infection needs to be pretty progressed to cause rapid breathing.
Amyloodinium on the other hand usually starts with affecting the respiratory system heavily before showing on the skin.
I would give these fish a prophylactic freshwater or formalin bath to dislodge eventually present Amyloodinium. If the fish have velvet you should find something in the bath water (maybe strain it to a sufficiently fine micro sieve).
Chicago
New member
still trying to figure this out.. took some scrappings from the female scribble this am. I can see the ick. any of you see other bad guys..
not sure what the yellow spots are.. might be just some dust but noticed looks like limited to on the scales. have yet to see a pic of velvet so not sure.
anyways.. on of the videos we have a speedy ick.. flying all over the place.
next video has lord humungas .. ick. 50 times larger.
other is a close up
input welcome.. thanks
not sure what the yellow spots are.. might be just some dust but noticed looks like limited to on the scales. have yet to see a pic of velvet so not sure.
anyways.. on of the videos we have a speedy ick.. flying all over the place.
next video has lord humungas .. ick. 50 times larger.
other is a close up
input welcome.. thanks
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