What Are These?

[guppymommy]

Hey all, I had some fish given to me by someone who was moving and unable to take the fish with them. Can anyone help me figure out what they are? I'm not sure that this topic belongs here, as I'm not sure what the fish are, but I am posting it here as I DO know that there are 4 silver dollars in the tank, and I think they belong in the Characin category. If not, can someone direct me to where they should be?

The fish are currently in my 55 gallon tank and I had planned on keeping hifin lyretail swordtails in the 55 gallon so I need to identify the unknown fish so I can find out if they are good tank mates for swordtails. Any help would be greatly appreciated.

Here are some pictures:

These are silverdollars, right?

There are a total of 4 of what I think are silver dollars and then here are some I don't know what they are.

Here is something with the silverdollars. There is only one of this kind of fish (whatever it is)

And here is another picture of the same fish.

I'm not sure what this is either, but there is only one of him/her as well.

There are three of these:

One of these:

One of these (hiding on the underside of the rock decoration):

And three of these:

The tank also has three platy and one betta in it at the moment.

Thanks so much!

 

[Lateral Line]

Found this in the Fish Index. Since most of the fish are CC&A moved here.

The first unknown, with the SD's is Hemigrammus caudovittatus, a Buenos Aires Tetra.

The next, the top swimmer, is a Panchax of some kind. There are a large number of species, and from the picture it is not easy to tell which.

Red chaps with the black dorsal and spot are Hyphessobrycon callistus, goes under a whole list of common names, Serpæ is probably the most common.

Next is a Red-Finned or Rainbow Shark, Epalzeorhynchos erythurus.

Lurking under the stone is a plec of some kind, again, hundreds of them, impossible to say from the pic.

Last is Gymnocorymbus ternetzi, Black Widow or Black Skirt tetra.

 

[krishanu]

ive identified the fish by picture number. hope its helpful...
5 & 6 - serpae tetra
7 - rainbow/ruby shark
8 - plecostomus aka crocodile fish

im not sure but...
1 - possibly a silver dollar
9 - possibly a black widow tetra

i have no idea what the other two fish are though i like both of them. the second one might be a type of rainbow fish, while the one pictures 2 & 3 looks like some sort of tetra

 

[guppymommy]

Thank you so much! I had no clue as to what these fish were. I really appreciate the responses.

 

[Teelie]

At a guess the pleco is a common. It's not too often people who don't know what they're doing will get an unusal pleco and not realize it. Usually you have to special order anything besides the typical commons, bristlenoses or rubberlips.

 

[guppymommy]

Well, as I said, these fish were given to me by someone who was moving. She saw me purchasing the 55 gallon tank and asked if I wanted some fish. I'd never met her before that. We exchanged phone numbers and when the time was right, she brought the fish to me. I'm still trying to find out more about these fish so I can care for them properly.

Thanks to everyone for helping ID them.

 

[pica_nuttalli]

er, and in response to the original question about swordtails... most of your new fish are pretty nippy and might not mix well (the Buenos Aires tetra for sure!)

 

[halfbloodprincess]

The top one is definatly a silver dollar.


the one in the forth one is a rainbow fish

the 7th pic is a rainbow shark and the 8th is a pleco

the last pic is a black phantom tetra

 

[daytona]

The 4th picture down is a killifish.....top feeder and stays at the top almost like a butterfly fish. Killifish are very, very friendly to humans and can be hand feed

 

[jollysue]

sorry, pica_nuttalli, I don't believe that is a black phantom, too much skirt. Could be a black skirt or black widow, which are nippier than the phantom--or so I hear. The black phantom has a black tail fin. Pictures #3, 5, 6, 9 are Tetras. If the colors are off a little in pic #5, it could be a rosie. #6 the larger one is most certainly commonly known as a serpae Tetra. The more I look the more I think #5 is a rosie Tetra: a sweet cross in looks between a black phantom and a bleeding heart. It's about the size, shape, markings of the phantom w/colors like the bleeding heart.

 

[Lateral Line]

sorry, pica_nuttalli,

It was halfbloodprincess that incorrectly identified it as a Black Phantom, not PN.

The pink/red tetras are Hyphessobrycon callistus, serpæ's. The Rosy Tetra, Hyphessobrycon rosaceus has a longer, sickle shaped dorsal fin, has longer front rays of the anal fin, which also lacks the black evident in the pictures, and has just a small white, or more usually clear patch rather then the white edge of the serpæ. They also do not have the obvious dark shoulder patch of callistus.

 

[jollysue]

sorry, PN


LL, I'm still not convinced that pics #5 & 7 are the same fish as pic #6 (which is certainly a serpae/Hyphessobrycon callistus.) The female rosie does not have the sickle shaped dorsal, and I can see some variations among the fish within species. The rosie does have lovely white tipped ventrals (?), reminiscent of a Betta, which do not show in these pics. But the black shoulder, if it is more than a trick of the light, is a deal breaker. I have rosies that have a dark shadow on the shoulder but not a black patch.

 

[jayjay]

So;
Myleus sp. can't remember? Silver dollars.

Hemigrammus caudovittatus, a Buenos Aires Tetra.

Apolcheilus sp. maybe dayi most likely lineatus? Golden wonder panchax.

Hyphessobrycon callistus, Serpae tetra aren't they called Hyphessobrycon serpae, or has it been change?

Epalzeorhynchos erythurus, rainbow shark.

Hypostomus sp., plec.

Gymnocorymbus ternetzi, Black Widow.

 

[Lateral Line]

Serpae tetra aren't they called Hyphessobrycon serpae, or has it been change?

The nomaclature of this "species" is not clear. H. serpæ, H minor and a few others were synonymised with H.callistus. Another re-working synonymised some, but not all of the same species with H. eques.

The "group" is made more difficult because the "blood tetras" will all interbreed producing viable hybrid offspring. I suspect a lot of the LFS offerings are mongrels.

Once again, I believe that a true classification will have to wait for a genetic study to be done. For now, I see both H. callistus and H. eques being used by respected journals and sources. I choose to use callistus simply because I got used to doing so, it is neither better or worse then eques. Both are probably wrong!

 

[sylvia]

Serpaes and black widows/skirts are nippy. They may be a problem for the lyretail swords but also for the betta you mentioned is in there. All the tetras need to be in groups of at least 6 and I'd personaly re-home them if you are going ahead with your swordtail plan and at least move the betta out. Silver dollars grow large but are otherwise quite peaceful. They can eat fry though so maybe those would be best rehomed as well if you want to breed the swords. The other thing is that silver dollars may dessimate plants which you might want if you plan on raising fry. The plec, if it's a common, needs a larger tank. Rainbow sharks will also eat fry and are territorial but souldn't otherwise be a problem. The panchax can eat fry as well.