SR Severum sexing, high back?

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Daveunkefer

Daveunkefer

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Dave Unkefer
I have a group of six 3+ inch super red severums in my 125g.

There is 2 obvious different shapes to the fish. One kind has a high back compared to the other.im wondering if this is how maybe I can tell the sex of them? What do you guys think??




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Pittbull

Pittbull

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Not sure mine are the same I have 1 Super Red and 3 Greens and the Super Red looks like a different strain.. There are a few sub species of Sev's though..
 
SubRosa

SubRosa

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Pittbull said:
Not sure mine are the same I have 1 Super Red and 3 Greens and the Super Red looks like a different strain.. There are a few sub species of Sev's though..
Click to expand...
Color varieties are not subspecies.
 
SubRosa

SubRosa

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First one is almost certainly male, second one is probably female. Look at the shape of the head. The first fish is developing a nuchal hump, which is usually a male characteristic.
 
Daveunkefer

Daveunkefer

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SubRosa said:
First one is almost certainly male, second one is probably female. Look at the shape of the head. The first fish is developing a nuchal hump, which is usually a male characteristic.
Click to expand...
ok i see what you are saying. thats awesome.
thanks.

it seems like the top fin is a lot different also.
 
Daveunkefer

Daveunkefer

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Pittbull said:
Not sure mine are the same I have 1 Super Red and 3 Greens and the Super Red looks like a different strain.. There are a few sub species of Sev's though..
Click to expand...
I saw your pics of the large sevs you got. Great find. I wish I could find some large ones.

Great looking fish.


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SubRosa

SubRosa

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Daveunkefer said:
ok i see what you are saying. thats awesome.
thanks.

it seems like the top fin is a lot different also.
Click to expand...
Top and bottom fins (dorsal and anal fins) are generally longer and more pointed on males.
 
Pittbull

Pittbull

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SubRosa wrote:
Color varieties are not subspecies.
Click to expand...
Wouldn't these two be subspecies Heros severus and Heros efasciatus both look alike but are different.. And i do know different color variants are not subspecies.. Thanks for your input.. Guess I should have said there are different Heros..
 
Last edited:
Pittbull

Pittbull

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Apr 14, 2007
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Daveunkefer wrote:
I saw your pics of the large sevs you got. Great find. I wish I could find some large ones.

Great looking fish.
Click to expand...




Thanks Dave, yeah i was lucky to find these I guess I was in the right place at the right time..
 
SubRosa

SubRosa

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Pittbull said:
SubRosa wrote:

Wouldn't these two be subspecies Heros severus and Heros efasciatus both look alike but are different.. And i do know different color variants are not subspecies.. Thanks for your input.. Guess I should have said there are different Heros..
Click to expand...
Efasciatus and severus are each full species of their own, and although they look rather similar, there are significant differences in both max size and most importantly mode of reproduction. Odds are you've never seen a live H. severus in the trade. They're not readily available.
 
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