Hydrolycus scomberoides was my first impression based on the pics. They are a little blurry and I can't see them very well, so you guys are probably right.
Here's some i.d. info from the same site as that picture was taken from... http://www.opefe.com/hydrolycus.html
1. - Serrations present on the exposed field of scales in all specimens above about 100 mm SL; pelvic-fin base laterally inserted, distinctly above ventral profile of body; black spot at base of the innermost pectoral-fin rays; Rio Amazonas and its tributaries above mouth of Rio Tapajós....H. scomberoides
Here's a pic of mine (it's older, taken just after I purchased him)
You can't really see the serrations and laterally inserted pelvic fin, but the black spot at the base of the pectoral fin stands out loud and clear. If yours has all of these traits, then it's probably a Hydrolycus scomberoides. I thought I saw that black spot in your pic too, so that's why I guessed that but like I said, I couldn't see it well and could be wrong.
Here's some i.d. info from the same site as that picture was taken from... http://www.opefe.com/hydrolycus.html
1. - Serrations present on the exposed field of scales in all specimens above about 100 mm SL; pelvic-fin base laterally inserted, distinctly above ventral profile of body; black spot at base of the innermost pectoral-fin rays; Rio Amazonas and its tributaries above mouth of Rio Tapajós....H. scomberoides
Here's a pic of mine (it's older, taken just after I purchased him)
You can't really see the serrations and laterally inserted pelvic fin, but the black spot at the base of the pectoral fin stands out loud and clear. If yours has all of these traits, then it's probably a Hydrolycus scomberoides. I thought I saw that black spot in your pic too, so that's why I guessed that but like I said, I couldn't see it well and could be wrong.
