I will have a look again tomorrow. If it's anduzei I will be able to tell by the dorsal fin as it's quite distinctive compared to others in the genus. I think it's a bit big to be anduzei though and looks the wrong shape, but won't be able to tell until I have a look tomorrow. I've kept anduzei several times before, so we'll see. They often come in as bicatch with P. simulans.Sufficient. The irredescence, the red spot on the gillplate, some red in the fins... I'm very positive now it's an N. anduzei. Quite a rarity if it really is.
Finally we could import one of the smallest fish species of the Amazon basin again: Nannostomus anduzei. They stay – including the tail fin – usually smaller than 2 cm. Our current import came via Manaus, so they are Brazilian animals; the specimens on which the original description was based...www.aquariumglaser.de
That I've attributed to the background, as it's only visible in the second picture unless you know it's there.There's also quite a distinct white line extending into the caudal fin which is not present in anduzei.