I suggest if someone has extra time they could compose a list (using excel maybe) of generic name, scientific name, pictures, length. Or at least the lengths of the fish. That would probably help greatly rather than just posting scientific names. But I know no one probably has the time so here's a tetra list if anyone's interested in tetras like I am.
Here's the first 10 on the list:
1.7cm/0.67" Ruby tetra Axelrodia riesei
2cm/0.79" Ember tetra Hyphessobrycon amandae
2cm/0.79" Green Neon tetra Paracheirodon simulans
2.1cm/0.83" Jellybean tetra Lepidarchus adonis
2.7cm/1.06" Silvertip tetra Hasemania nana
2.8cm/1.10" Royal tetra Inpaichthys kerri
3.1cm/1.22" Jewel tetra Hyphessobrycon eques
3.2cm/1.26" Blackline Penguinfish Thayeria boehlkei
3.2cm/1.26" Red phantom tetra Hyphessobrycon sweglesi
3.3cm/1.30" Flag tetra Hyphessobrycon heterorhabdus
-thanks to the wolf...