OK, wild guess but...
Apistogramma Bitaeniata?
Apistogramma Eremnopyge?
http/farm4.static.flickr.com/3028/2434603290_8919a8ef67.jpg
These are the best I can find...
the first one looks more like her than any other i have seen, maybe it is one of the bitaeniata's thanks for your investigations lol
