How Do You Tell What Sex They Are?

[arbatey]

I just bought 2 blue Gourami and I am wondering how to tell whether they are male or female.
Can anyone help?

Also, anyone know about Dojo's? How do you tell what sex they are?

 

[TammyLiz]

I almost didn't post a reply since I am asking the opinions of others in another thread on what sex mine are, but I saw that nobody has answered you yet, so I'll tell you that the way they say you do it is look at the dorsal fin. The males is pointed and longer and the females is rounded. I personally have some fish that have longer, rounded dorsal fins, so I am not sure and I'm hoping someone will look at my pics and give their opinion. Hopefully yours are a little more straightforward for you.

 

[arbatey]

I almost didn't post a reply since I am asking the opinions of others in another thread on what sex mine are, but I saw that nobody has answered you yet, so I'll tell you that the way they say you do it is look at the dorsal fin. The males is pointed and longer and the females is rounded. I personally have some fish that have longer, rounded dorsal fins, so I am not sure and I'm hoping someone will look at my pics and give their opinion. Hopefully yours are a little more straightforward for you.

Thanks. Yeah...I was surprised to not receive any responses. Usually this site is good for that, but I guess no one knows a darn thing about determing sex. Guess I stumped them.
I've been researching it. My oscar's fins are more rounded as well. I guess I'll figure it out sooner or later. Let me know if you find out what yours are.

Amy

 

[sylvia]

I have to say the picture in your post confused me a little when I first looked at it but I see it's your signature

Anyway, yes, you can sex 'blue' (a color morph of the -three-spot- gourami trichogaster trichopterus) gouramies by looking at their dorsal fin most easily. The male's is longer and noticeably more pointed while the female's is about half the length (in mature fish) and rounded. The body shapes are also different, females being deeper-bodied and wider when viewed from above. Ultimately, males also grow to be larger and are usualy a lot more aggressive.

Note that you could have easily found the answer to your question if you'd searched this section of the forum

If you are still uncertain, post some pics of your fish and I (or someone else) will sex it for you.

About your dojo loaches:

The sexes can be distinguished by the pectoral fins. The pectoral fins of the male are much larger than the females'. Also, the first two spines of the male's pectoral fin are much stronger than the rest.

Taken from here: http/loaches.com/species_pages/wloach.html