Crazyfish88;3824499; said:
You should do a review on the Piraiba, supposively the largest catfish in the Amazon today. Growth to about 3-4 meters, 600+ lbs, also they growl like a dog!
I owned a Piraiba (Brachyplatystoma filamentosum) from 1997 to 2009 when it disappeared in my big tank. Ironically my goonch (Bagarius yarelli) bought the same day in 1997 also disappeared in 2009. Both were bought from Oliver Lucanus and his partner Sean when they co owned Biotope Imports in Montreal Canada. Both were probably killed by my female Wallago Leerii. I had a large increase in cichlids by the end of 2009 probably because of their demise.
My Piraiba, Filhote (Brazil) Zungaro, Salton (Peru) Pirahiba Lechero, Valenton (Columbia), and also called the Jumper cat and Salton in North America only grew to about 36" or so in the 12 or so years I owned it.
A book (The Catfish Connection) written by scientists Ronaldo Barthem and Michael Goulding and published by Columbia University Press in 1997 has the results of their studies of ecology, migration and conservation of the 13 large predatory catfish of the Amazon and is worth reading. I bought my copy from Lee Finley a few years ago.
The measurement they use in their book is fork length which falls between SL and TL and actually is a good measurement.
Their findings of more than 34 years (combined) studying the big cats and the research of Eigenmann, Goeldi, Mees, Goulding, Barletta and Zuanon from 1890 to 1996 shows the longest ever scientifically measured was 280cm.
They use length-weight relationship charts and the heaviest recorded on their charts was about 140kg (a 220cm fish) which was just slightly more than a 135kg 270cm speciman weighed. The heavier shorter fish was likely a female and the longer fish was likely a male.