One to sex

We all know how difficult it is to identify the sex of these fish, so please post a picture in here and we'll try to help you (or at least give an educated guess!).
Post Reply
User avatar
TwoTankAmin
Moderator
Posts: 1239
Joined: Fri Apr 21, 2006 2:16 am
Location: Westchester Co., NY

One to sex

Post by TwoTankAmin » Fri Oct 22, 2010 10:09 pm

Hi guys- just one fish, please give it your best opinion on sex- the fish is about 2.75 inch TL :-)

Image

Image

Image

Image
What makes the common person uncommon is common sense.

User avatar
John
Moderator
Posts: 1611
Joined: Wed Aug 23, 2006 8:58 pm
Location: Hellevoetsluis / Holland
Contact:

Re: One to sex

Post by John » Sat Oct 23, 2010 8:46 am

This is one of them that gives you a headache,while it''s got both male and female characteristics :)
Could you tell something about its behaviour?
Greetings,
John
[img]http://i185.photobucket.com/albums/x276/hypancistrus-zebra/half.gif[/img]

har_eh
Moderator
Posts: 176
Joined: Sat Nov 08, 2008 6:35 pm
Location: Antwerp, Belgium

Re: One to sex

Post by har_eh » Sat Oct 23, 2010 11:39 am

I'm gna say female, she just needs to fatten up a little imo.

User avatar
TwoTankAmin
Moderator
Posts: 1239
Joined: Fri Apr 21, 2006 2:16 am
Location: Westchester Co., NY

Re: One to sex

Post by TwoTankAmin » Sat Oct 23, 2010 4:50 pm

I recently acquired two fish of which this is one and which were acquired as both being males ready to spawn. They spent about a month in a Q tank which was well wooded and planted and into which I had placed 3 different caves. The tank has 3 filters- 2 HOBs and a large sponge.

For the first week both fish hid under or alongside the sponge. Then one took up residence in one of the caves which it basically claimed until the fish were moved into my primary breeding tank. the other fish which is the subject of this thread never even went into either of the other caves. It would hide under the sponge or under some of the wood. It was this lack of caving that made me question its sex.

Despite all of the various pleco spawns I have had over the years I am still awful at sexing my fish. I mostly rely on behavior as the way. Females lay the eggs males own caves and raise the kids.

One note- the fish were acquired because it was my feeling i had lost a few males over the years and my colony was short of them. So I decided to add two new males to spur some competition. Instead of spawning all I was seeing was fighting between 2 males. It seems to have had some effect as an unsuccessful almost 2 day trapping ended without success this week. It was the first action in the tank since I lost the last spawn/eggs in the tank in April this year.
What makes the common person uncommon is common sense.

Lifted193
Obsessed!!
Posts: 123
Joined: Sat Apr 15, 2006 5:34 am
Location: So. Cal, USA

Re: One to sex

Post by Lifted193 » Sat Oct 23, 2010 5:52 pm

IMO it's a young male....with a little more growing to do.
I have some males that spends most of their time under slates and wood, rarely do they go into caves.

Jacqueline
Groupie
Posts: 85
Joined: Mon Jun 21, 2010 2:31 pm
Location: Ede, Holland

Re: One to sex

Post by Jacqueline » Sun Oct 24, 2010 8:15 am

Looking at headshape I would think female. But looking at the thick pectorialfins with the odonthodes on it I will say male for now.

User avatar
John
Moderator
Posts: 1611
Joined: Wed Aug 23, 2006 8:58 pm
Location: Hellevoetsluis / Holland
Contact:

Re: One to sex

Post by John » Sun Oct 24, 2010 1:31 pm

Greetings,
John
[img]http://i185.photobucket.com/albums/x276/hypancistrus-zebra/half.gif[/img]

User avatar
davo
Groupie
Posts: 70
Joined: Wed Jan 10, 2007 11:22 am
Location: Perth Australia

Re: One to sex

Post by davo » Tue Oct 26, 2010 5:25 am

Non dominant male the vent has a nice V shape, a female would be more round shape to me. :wink:

:book: Dave

User avatar
TwoTankAmin
Moderator
Posts: 1239
Joined: Fri Apr 21, 2006 2:16 am
Location: Westchester Co., NY

Re: One to sex

Post by TwoTankAmin » Fri Oct 29, 2010 8:23 pm

Interestingly enough one of the people whom I feel is one of the most knowledgeable on hypans has sexed the fish as fm based on the vent.
What makes the common person uncommon is common sense.

Post Reply