300 gallon poly tank

jaws7777

Probation Member
Probation Member
Mar 1, 2014
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White house 1600 Pennsylvania Ave NW, Washington

jaws7777

Probation Member
Probation Member
Mar 1, 2014
17,773
20,946
740
White house 1600 Pennsylvania Ave NW, Washington
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moe214

Goliath Tigerfish
MFK Member
Oct 13, 2014
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Found some pic, here is my koloton, you can see how muscular the anal even when its laying still.
View attachment 1264349 View attachment 1264350 View attachment 1264351

Yours look more like this bv on the left on top of the wood, anal has a little muscle but still a female.
View attachment 1264353
The bv you referred to as female, can we see better side picture. I say you have a prime example of a female with the fish next to it on the dw. You have to remember only males will develop the muscular anal fin, it's used to catch the eggs. Females have no use for the muscle. Would make no sense for them to evolve with it.
 

jaws7777

Probation Member
Probation Member
Mar 1, 2014
17,773
20,946
740
White house 1600 Pennsylvania Ave NW, Washington
The bv you referred to as female, can we see better side picture. I say you have a prime example of a female with the fish next to it on the dw. You have to remember only males will develop the muscular anal fin, it's used to catch the eggs. Females have no use for the muscle. Would make no sense for them to evolve with it.
Agreed..i think the one on the left is male and right is female
 
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twentyleagues

Bronze Tier VIP
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Apr 5, 2017
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Flint town!
I don't know much about the sexing thing I thought the width or thickness of the fin is what you go by. But you could have a small thin fin and if the base is very muscular its a male? Both my dels have a very thin fin but the base on one is very muscular ill try getting pics too.
 

jaws7777

Probation Member
Probation Member
Mar 1, 2014
17,773
20,946
740
White house 1600 Pennsylvania Ave NW, Washington
I don't know much about the sexing thing I thought the width or thickness of the fin is what you go by. But you could have a small thin fin and if the base is very muscular its a male? Both my dels have a very thin fin but the base on one is very muscular ill try getting pics too.
How big are the dels ? Im gonna get a good pick of ghost congi anal fin (female)
 

Polyaddict86

Alligator Gar
MFK Member
May 1, 2016
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Yey bay bay
The bv you referred to as female, can we see better side picture. I say you have a prime example of a female with the fish next to it on the dw. You have to remember only males will develop the muscular anal fin, it's used to catch the eggs. Females have no use for the muscle. Would make no sense for them to evolve with it.
Ill try to get a pic, its hides in the pile when i get close to the tank.
 
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