Opaeula.co.uk

A dedicated forum and online store for the Opae ula shrimp! 

■ We sell Opae ula Shrimp and Brackish water Macroalgae via our UK eBay store HERE
This section is to discuss anything Opae ula shrimp and brackish water related. e.g Nerite snails, algae etc..
 #6701  by zlatan2601
 02 Feb 2019 12:46
I noticed some of my opae have really big claws, others have really small claws. Can we learn something of it? Is it age related? Gender related?
 #6702  by Algae In Space
 02 Feb 2019 13:05
I rarely pay attention to their claw size difference but if I remember correctly male claws are bigger than female ones. :grin3:

Are the big claw ones in your tank more translucent too?
 #6703  by zlatan2601
 02 Feb 2019 13:17
Translucent as in being transparant? Possibly, i would need to have a closer look again. I have around 5 mature opae ula, 2 have really big claws. One is really big and completely white, the other is a bit smaller and red/pink. I have also mature red ones without the bigger claws. And i already saw some smaller opae but also with big claws or without the big claws... So it doesn't seem to be age related.
 #6705  by Arnold
 02 Feb 2019 14:31
Big claws supposed to be females, small claws supposed to be males
 #6707  by zlatan2601
 02 Feb 2019 17:07
@Arnold are you sure?

@Algae In Space yeah but unfortunately i don't have a good camera, it's not clear on the pictures I take... Once i have berried females, i will follow it up very closely...
 #6708  by Algae In Space
 02 Feb 2019 17:11
Maybe you got some Metabetaeus lohena in there with the regular Opaes? Are they way bigger in size? This would explain it all :grin3:

Image
 #6709  by Algae In Space
 02 Feb 2019 17:13
Arnold wrote: 02 Feb 2019 14:31 Big claws supposed to be females, small claws supposed to be males

As I don't have a macro lens I wonder how one can tell if this is true? Have you examined yours? I can't remember if there is something written on it in the holy book. What does OUR say?
 #6710  by zlatan2601
 02 Feb 2019 17:17
Fyi i have examined thel with my eyes (but my eyes are quite good) and with a loop...
 #6711  by zlatan2601
 02 Feb 2019 17:18
They are definetely opae, as they come out of a tank only containing opae for several years. I call the claws big but it's relatively compared to others... For some opae they are more pronounced than for others...