Opaeula.co.uk

THE forum and online store dedicated to Halocaridina rubra aka the Hawaiian Opae ula shrimp! 

■ Our Opae ula shrimp web store is now open! We are selling Opae ula Shrimp via our eBay store HERE
This section is to discuss anything Opae ula shrimp and brackish water related. e.g Nerite snails, algae etc..
 #3328  by Vorteil
 28 May 2017 06:43
How do you tell the sex of the shrimp? What distinguishes the difference between a male & female and how can I spot it?
 #3330  by odin
 28 May 2017 15:28
Now that's is the million dollar question :happy: The only tell tale way i have spotted is literally the saddle on the females (Its the dark saddle shaped spot in her back)

Image

Maybe someone else has any other ways of differentiating ?
 #3335  by Vorteil
 28 May 2017 20:30
I saw on the Volcano Shrimp site stated this was one way to tell. So do all your berried females have this?
 #3336  by odin
 28 May 2017 20:35
The saddle which you can see in the image is the visible development of eggs in a females ovaries, it doesn't mean that she will become berried (Carrying eggs) but its a good indicator that she is mature enough to become berried. Here is another quick photo of one of mine that was berried and you will notice the saddle has gone and she is carrying the eggs that have moved down and out.

Image
 #3346  by Vorteil
 29 May 2017 22:24
Thanks for the additional information. Great to know.
 #3353  by odin
 30 May 2017 18:24
No problem, its very difficult to tell with this type of shrimp unfortunately.
 #4215  by odin
 31 Dec 2017 17:30
Its still too hard to tell if you ask me lol :smile:


PS.. Have a Happy new year all!