Does anyone know the history of blue vs green nannacara anomala?

[anewbie]

I've had both blue and green form n anomala but every green form i've seen has been 1.5x larger than the blue form - i'm not sure if this size difference is due to how the domestic are being bred or if this is a characteristic of them in the wild hence the question.

(this size difference is in reference to the male as the females are nearly the same size); the green form i had was hobby bred the blue form unknown but likely domestic.

 

[Mike Wise]

In the 1980's I had blue, green and black (dark grey actually) and all were wild caught. Females all appeared the same. All the males grew to the same size, about 3"/7,5cm. The size difference that anewbie saw was probably difference in age and care,

 

[anewbie]

In the 1980's I had blue, green and black (dark grey actually) and all were wild caught. Females all appeared the same. All the males grew to the same size, about 3"/7,5cm. The size difference that anewbie saw was probably difference in age and care,

I suspect the domestic blue has been runtified as i've not seen a large one. Oh well nice fish - one day i'll get a nice pair.

 

[Dwarf_Enthusiast]

I can't find any good pictures to distinguish blue from green. Would y'all be able to hazard a guess as to whether mine is green or blue?

I'm guessing blue... But what do y'all think?

 

[KenL]

Nice chunky fish.
Can the blue/green not be due to how the light hits them?

 

[Mike Wise]

Definition is entirely arbitrary. Back decades ago color was based on the color of the soft parts of the dorsal and anal fins. I've had blue, green, black and red (orange actually) color morphs.

 

[anewbie]

Definition is entirely arbitrary. Back decades ago color was based on the color of the soft parts of the dorsal and anal fins. I've had blue, green, black and red (orange actually) color morphs.

Do you know why they are no longer imported from the wild ?

 

[Mike Wise]

Most come from Guyana which is rather protective of their wildlife. AFAIK commercial export is rather limited. Most specimens reach the hobby through hobbyist who collect their own.

 

[anewbie]

Most come from Guyana which is rather protective of their wildlife. AFAIK commercial export is rather limited. Most specimens reach the hobby through hobbyist who collect their own.

I guess that make sense. I feel i'm too old to go down there to get a fish but then again i really want a fish...

Hum. Oh well - i generally agree the conservation is the right approach so i should be glad about that.

 

[Mike Wise]

Many countries understand that personal hobbyist collectors who only collect a few specimens for their own use will not adversely affect the species. Additionally hobbyist collectors bring in money to the local economy. Commercial collecting can be a problem if not regulated. We know for example where most of the D-number species occur but these are not disclosed publicly to prevent commercial over-fishing. This is different from many local collector who keep locations to themselves so they can be the sole supplier of a species. "Corporate espionage" is surprisingly common among fish collectors. They will secretly follow each other hoping to find the location of desirable species.