blue lapis ( Hyphessobrycon melanostichos ) ???

[Magnum Man]

this is one of the group of young fish I got, that were supposed to be rainbows ( Nematobrycon lacortei ) of which, as they are maturing, I don't think any were actually lacortei... most look to be palmeri... but I think there are 2 of these from the group, if they are lapis, they are not fully mature yet, so should continue to keep coloring up ( no red on the fins yet )

 

[GaryE]

I need to do some digging on that fish, if no one here is familiar with them. I have them as "Imperial Lapis". They don't look like what I had sold as melanostichos now, but I also see the fish listed online for sale as Hyphessobrycon alteris, cyanotaenia and as an undescribed species.

Mine love the fastest water they can get into, and run in the flow from a powerhead in their tank. The canister output doesn't appeal to them as it's too slow. That goes against the site that describes H. alteris as a slow water tetra.

I hate names in English, even translated from Mandarin.

Mine have red tails, but the dorsal and paired fins are still clear. It's a lovely fish. We will see what develops.

 

[anewbie]

from the glasser picture i'm not sure but it could be melanostichos - it is unfortunate but i never really dwelled into the details of tetra species. There are 100s of them with many looking very similar to each other with very slight changes in details; though sometime behavior is more radically different. Then you run into male/female dimorphism so you never know what you have

 

[anewbie]

from the glasser picture i'm not sure but it could be melanostichos - it is unfortunate but i never really dwelled into the details of tetra species. There are 100s of them with many looking very similar to each other with very slight changes in details; though sometime behavior is more radically different. Then you run into male/female dimorphism so you never know what you have

One thing I forgot to mention but with dwarf cichild one of the first question that is often asked with regards to species is catch location; and given the extremely large number of species (many unclassified) i presume this is also true. I realize that you don't have this information but i'm pretty confident that for many species a single blurry picture is going to make id very difficult and in fact a single sample will also make it very difficult. Going with something much more common i have a group of red phantom and serpae and picking how the two species is a pain even though the difference in black marking is well understood between the two species.

 

[Innesfan]

Going with something much more common i have a group of red phantom and serpae and picking how the two species is a pain even though the difference in black marking is well understood between the two species.

I too recently tripped up over two members of the 'Rosy Tetra Clade' in a private exchange with another forum member. And I bet there are a few more 'new' species who will be inducted into the clade when they reveal themselves in the Amazon Basin. Stan Weitzman posited the hypothesis of the Rosy Tetra Clade in '97. I wish he had lived long enough to see that the massive dna-informed revision of Hyphessobrycon has confirmed what is now his theory.

 

[GaryE]

Here are mine, chugging along being what they are.