Columbian Shark gravid with eggs?

[Tanyoberu]

I can't prove the sex of a columbian shark, but I think I noticed two major differences. One, I truly believe I have a female that is currently holding eggs. I think I have another female because of the wider body size. But I also noticed that "females" their pelvic fins are much longer. Any other observation?

Also, I believe the males are mouth brooders. It seems they have created a "nest" in the tank by clearing the gravel to the bare bottom. Can I create a more comfortable environment that you may know? Cave?

I feel bad that I'm not using sand and that they are moving these large pieces of gravel by using a swimming motion in one spot.

 

[kingJulien]

well good luck with what goes on . and if they do lay eggs it be cool to see pics or just updates on how they are doing. thanks

 

[Red Devil]

i hope things work out for you, i also believe mine were trying to breed..it actually caused me to lose one of them.. in the wild these guys go to have their babies in fresh water... i think it became very frustrating to mine that they could not leave the salt set up and breed normal like they would in the wild.. to make a long story short the male who held the eggs in his mouth eventually perished because he would go off food.. nothing would help..and we tried everything...even force feeding ..hard to lose one after 8 years.. on a more optismistic note.. the one left behind is now a different fish.. instead of dying of lonliness..she is thriving..almost like the pressure is off her.. and she is free..crazy...