Tetra ID assistance? - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 18 Old 01-27-2012, 08:57 PM Thread Starter
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Tetra ID assistance?

I need some help with a tetra ID. Unfortunately, I don't have a picture.

Description: Body shape similar to Neon tetra. Has a lateral line resembling the black tetras (bright blue/green) . Distinct red color on the entire dorsal, tail, and anal fins. Color on dorsal and tail very bright red, more faded on anal fin. Slight blue tinge on tips of tail and dorsal fin. Black spot at base of tail.

Any suggestions regarding the Genus, species, or common name are appreciated!

18 species/varieties of fish, 15 species/varieties of plants - The fish are finally ahead of the plants!
*560 gallons (2120 liters) in 5 tanks -> you do the math.
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post #2 of 18 Old 01-27-2012, 09:23 PM Thread Starter
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Update: also has a black line just under the blue/green lateral line of color. Hint of blue iridescence on head over the eyes. These are young fish, only about 3-4 weeks old.

18 species/varieties of fish, 15 species/varieties of plants - The fish are finally ahead of the plants!
*560 gallons (2120 liters) in 5 tanks -> you do the math.
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post #3 of 18 Old 01-30-2012, 05:00 PM
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Trying to narrow it down. Does it resemble any of these:
Hyphessobrycon anisitsi
Hemigrammus hyanuary.
Hyphessobrycon loretoensis

If it does (but is not one of those), it will hopefully point me to others not in the profiles. These two genera are catch-all for a couple hundred species, and many have been discovered only recently.

Going through my own photos, here's another that somewhat matches your description, Hyphessobrycon nigricintus that was described by Gery and Zarske in 2004 and apparently is being imported.

Byron.
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File Type: jpg Hyphessobrycon nigricinctus2.jpg (55.9 KB, 46 views)

Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]

Last edited by Byron; 01-30-2012 at 05:11 PM.
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post #4 of 18 Old 01-31-2012, 02:13 PM Thread Starter
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Quote:
Originally Posted by Byron View Post
Trying to narrow it down. Does it resemble any of these:
Hyphessobrycon anisitsi
Hemigrammus hyanuary.
Hyphessobrycon loretoensis

If it does (but is not one of those), it will hopefully point me to others not in the profiles. These two genera are catch-all for a couple hundred species, and many have been discovered only recently.

Going through my own photos, here's another that somewhat matches your description, Hyphessobrycon nigricintus that was described by Gery and Zarske in 2004 and apparently is being imported.

Byron.
Thanks Byron, I'll keep trying to get a picture, but these guys move fast and my camera's not the best!

Hyphessobrycon anisitsi - the lateral line on mine is much brighter on mine, and the anal fin doesn't seem to extend into the tailfin, but the body shape is about right. Also the black lateral line under the "neon" line is very distinct on my fish, but not large, it's "vertically thin".
Hemigrammus hyanuary - could be, but the red fins are very distinctive on mine and the black tail spot is much smaller proportionally
Hyphessobrycon loretoensis - closer, but the black line is much smaller than the green "neon" lateral line on my fish.

After looking around some more, it very closely resembles a white cloud minnow in coloration, but is brighter than any I've ever seen locally! Black tailspot is exact, as is fin coloration, except mine have some faded red on the anal fins. Might just be some really nice white clouds?

18 species/varieties of fish, 15 species/varieties of plants - The fish are finally ahead of the plants!
*560 gallons (2120 liters) in 5 tanks -> you do the math.
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post #5 of 18 Old 01-31-2012, 02:39 PM
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There are two other species newly discovered in the genus Tanichthys, these are mentioned in the profile of Tanichthys albonubes. If you do a Google search you will find many photos, have a look.

You didn't mention an adipose fin, this would help narrow it down. An adipose fin would indicate a characin, probably (some do not posess one) but certainly not a cyprinid which is what the Tanichthys species are.

Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
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post #6 of 18 Old 02-01-2012, 08:19 AM Thread Starter
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Quote:
Originally Posted by Byron View Post
You didn't mention an adipose fin, this would help narrow it down. An adipose fin would indicate a characin, probably (some do not posess one) but certainly not a cyprinid which is what the Tanichthys species are.
No adipose fin, just checked. I may be totally off on the possible ID as a Characin, I was assuming tetra since that's what the person I received the unexpected eggs from told me. Still can't get a picture that shows enough detail to help with an ID.

18 species/varieties of fish, 15 species/varieties of plants - The fish are finally ahead of the plants!
*560 gallons (2120 liters) in 5 tanks -> you do the math.
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post #7 of 18 Old 02-01-2012, 12:29 PM
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If there is no adipose, I would doubt it is a "tetra," as most (but certainly not all) have one. But there are other characins. Many pencilfish do not, and off the top of my head I can't think of a Nannostomus species that meets your description, but you might want to check those photos through a Google search as there are several species not in our profiles since they are very rare. Then there are the closely related pyrrhulina in the Copella, Copeina and Pyrrhulina genera. Many use the generic term "tetra" for all these.

I assume the other white cloud species were not close?

Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
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post #8 of 18 Old 02-01-2012, 02:30 PM Thread Starter
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Some of the white clouds were close. Never having had either tetras or white clouds before, plus the miss-direction initially, I wasn't certain. It does most closely resemble the White clouds. The tail spot matches exactly as does overall body conformation. Colors are a little off what I see on the white cloud pictures, but everything else matches. I'll try to borrow a better camera and get a picture posted.

18 species/varieties of fish, 15 species/varieties of plants - The fish are finally ahead of the plants!
*560 gallons (2120 liters) in 5 tanks -> you do the math.
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post #9 of 18 Old 02-01-2012, 07:15 PM
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Quote:
Originally Posted by DKRST View Post
Some of the white clouds were close. Never having had either tetras or white clouds before, plus the miss-direction initially, I wasn't certain. It does most closely resemble the White clouds. The tail spot matches exactly as does overall body conformation. Colors are a little off what I see on the white cloud pictures, but everything else matches. I'll try to borrow a better camera and get a picture posted.
We've probably found it then, but let's see a photo when you can. I have often seen the common white cloud labelled "tetra" in fish stores and online, and I believe they are relatively easy to spawn. If you got these from a hobbyist, it may be the rarer species.

Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
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post #10 of 18 Old 02-06-2012, 05:28 PM Thread Starter
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Pictures, finally

The sun finally came out and I got some marginally good shots finally!

Thoughts on ID now?
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File Type: jpg unid fish small.jpg (31.2 KB, 26 views)
File Type: jpg unid fish2.jpg (30.2 KB, 24 views)
File Type: jpg unid fish3.jpg (39.5 KB, 26 views)

18 species/varieties of fish, 15 species/varieties of plants - The fish are finally ahead of the plants!
*560 gallons (2120 liters) in 5 tanks -> you do the math.
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