Hi everyone , I have recently aquired a pretty large group of B.filamentosum from Guyana . I got them in 2 batches , and different sizes. They are 4- 5 inches now . I plan on raising them together and documenting thier growth and my observations. These fish were being sold on fish lists as Brachyplatystoma sp. Manitoba. And seller said they are B. vaillantii which they are not . .