bitaeniata female and eremnopyge female

[jose_vogel]

I want to know the differences between those females (besides the double band in the bitaeniata).

I´m talking about fishes of 1.2 inches


Thanks in advance.

 

[ed seeley]

eremnopyge have a dark blotch below the lateral line in front of the caudal peduncle. It's usually visible most of the time in my fish, males and females.

 

[jose_vogel]

Yes, I know, but I´m almost sure they´re eremnopyge although I can´t see that blotch (I´ve them in a tea colored water -humic acids-).

Thanks

 

[Mike Wise]

At 3 cm the fish will be very difficult to separate. I would expect that A. eremnopyge will have a stouter body and a more narrow lateral band. Because the body is deeper, the lateral band on A. eremnopyge appears to rest above the mid-line of the body. The lateral band should look like it ends in front of a caudal spot most of the time. Put the fish in a net. When their fright pattern appears, the dark caudal peduncle blotch should appear.

A. bitaeniata will have a thinner body. The lateral band appears to rest near the mid-line of the body and it extends into the base of the caudal fin (no apparent caudal spot).

Hope this helps.

 

[jose_vogel]

Many thanks, Mike (and thanks for speaking using cm!!)

I always try to identify the species because I don´t want to hibridize them.

 

[Mike Wise]

and thanks for speaking using cm!!

Must be the scientist in me, but I much prefer metric to the Empirial English standard (ft. lb., gal.) I don't really understand why the US doesn't convert ot metric. Most of our machinery that is export (and even used in country) are designed in metric. My wife is the head metrologist (not meteorologist) for Colorado's Measurement Standards division. She has a funny poster in her office. It says: The U. S. is moving to the metric standard one inch at a time!

Enough said.

 

[ed seeley]

Must be the scientist in me, but I much prefer metric to the Empirial English standard (ft. lb., gal.) I don't really understand why the US doesn't convert ot metric. Most of our machinery that is export (and even used in country) are designed in metric. My wife is the head metrologist (not meteorologist) for Colorado's Measurement Standards division. She has a funny poster in her office. It says: The U. S. is moving to the metric standard one inch at a time!

Enough said.

Even worse you guys don't even use proper British Imperial Gallons!!!!!! :wink:

 

[Mike Wise]

Yes, we've alway been "a quart low".:biggrin:

 

[jose_vogel]

Mike, very funny the poster you mentioned.

Ed seeley, I´ve enough dealing with US metrics!!!!