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Corydoras bilineatus (San Juan Cory)

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novice - admin
19 posts

Scientific name: Corydoras bilineatus
Common name: San Juan Cory

Origin: Bolivia
Temperature: 22-26C
pH: The ideal pH is between 6.8-7.2
Size: Usually between 2-2.5in. (about 3-4cm.)
Diet: Must have a varied diet to be healthy. Shrimp pellets or Hikari Sinking wafers are a good staple diet, but veggie/algae wafers and bloodworms/tubifex worms should be added.
Care level: Relatively easy.
Temperment: Very peaceful
Lifespan: If kept properly, should be between 3-8 years
Breeding: So far, there has been no recorded spawnings of C. bilineatus in captivity.

San Juan Corydoras, members of the Elegans group, are one of the imerging species on the Corydoras scene and are getting more popular every year. These Corydoras tend to enjoy swimming in the middle zone a little more then most other Corydoras. They also, in my experience, shoal more then other species of Cories. Therefore they should be kept in groups of no less then four, preferably six or more.

Remember to keep these Corydoras in a peaceful setting, with no aggressive fish around. The tank should be planted and have quite a few hiding places. San Juan Corydoras, like other Corydoras, love hiding in driftwood, and I highly recommend getting a few pieces of it for your tank.

C. bilineatus are oftenly confused with other members of the Elegans group, so be sure to look closely before purchasing if you are concerned about not getting the real San Juan.

By Matt M.

Female (front) and male (back) C. bilineatus eating.

rookie - member
1 posts

If is possible upload one pic from a male and one pic from a female to saw better the sexual differences I know the females are more broad and large,but what aobut the markings over his body...are equal from the males or more pale or lavish.I ask it because I have interest in bought some of this Corys,to try breeding it.Thanks in advance

regular - founder
62 posts
Hi papagayo,

I will contact Matt, corylover, to see if he has photos that you asked for. I'll also check out the internet to see what I can find for you.

Great idea to add to the profile Laughing

Edited to add:

papagayo, in the photo provided in the profile, you can see the female of the species in the front and the male in the back. As a general rule, like you said, the females are stockier, larger, and sometimes lighter in colour, evident in the photo provided. Males are slimmer and smaller, also, it seems that their barring or striping is darker. It seems that females heads will also point upward when more mature due to their rounded-egg filled bellies. Matt still may have some photos to add for you, and I've contacted him about it.

I hope that helps.
__________________
~Leah Fishhome Forum and Database Founder
novice - admin
19 posts

Hi papagayo,

I have no other good quality pictures of C. bilineatus, as mine tend to be quite the recluses and are always moving when not hiding. In the picture shown, the male is in the back, and the female in the front. Male C. bilineatus are much more predominantly striped and are more colourful then the females. The females tend to be duller and lighter in colour with few fancy markings. I hope that helped! If you have pictures of your own, I'd be glad to try to help you in deciphering which are male or female.

Matt

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