Now we have received young sexed animals of the narrow-banded form (species?), 12-15 cm long. The males have developed – in addition to the modified anal fins, typical for sexually mature Myloplus males – black horizontal banding on the ventral side. To our knowledge, this has not yet been documented for M. schomburgkii. Possibly the phenomenon is related to reproduction, similar to the spawning rash in carp fish.
For our customers: the animals have code 270506 on our stocklist. Please note that we only supply wholesale. Only available in small quantities!
Obviously many different varieties – or do they even represent different species, who knows? – of the attractive pacu Myloplus (formerly: Myleus) schomburgkii exist. We obtained recently very nice specimens from Colombia, which are characterized by the very broad black band over the body. Our fish are 9-12 cm long and only subadults; Myloplus schomburgkii attains a maximum size of more than 40 cm.
For our customers: the fish have code 270514 on our stocklist. Please note that we exclusively supply the wholesale trade. Available in limited numbers only.
Shipments containing juveniles of silver dollars or pacus are always surprise packages. The juvenile coloration of many species is simply unknown and juveniles look totally different than the adults. So we can only guess that in our current case the fish from Venezuela may belong to the species Myleus torquatus.
The smallest babies, about 1.5-2 cm long, are very dark colored and have a light blaze on the forehead. They float through the water without much move and imitate a dead leaf. This can make the keeper pretty nervous, but is the normal behaviour. When the fish are a bit larger, 3-4 cm, they become lighter in basic colour and the blaze vanishes. A diffuse light band over the nape appears and an individually differing pattern of spots and stripes appears. The behaviour differs now, too: the fish become active swimmers and form schools with conspecifics.
If our new arrivals really belong to M. torquatus the adult fish will become about 20-25 cm long with a silvery basic colour, yellow fins and – this is species-specific for M. torquatus – a broad black band that borders the caudal fin. We will keep some specimens to see what will become of them. We are really curious for that!
For our customers: the fish have code 270630 on our stocklist. Please note that we exclusively supply the wholesale trade.
Text & photos: Frank Schäfer