Semaprochilodus insignis vs. taeniurus

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Longimanus

Candiru
MFK Member
Feb 19, 2009
405
19
48
BC, Canada
So, both of these guys are available in my area right now. I am having a hard time figuring the differences. So far I've found that taeniurus has dark spots on its sides that don't fade like they do on insignis. I've read that they both get around a foot, I've read that they both get up to 18 inches, I've read that each of them gets bigger than the other.... etc. etc.

I would like to know,
Which one has both a red tail and red dorsal and is brighter red...
Which one gets bigger...
Which one grows slower or are they both similar...
 
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