Actually, all I did was to check the online databases of museum records just to see what species of fish are found in a particular drainage. The caveat to using this method is that the database identifies fish that are sympatric (found in the same drainage), but does not say whether or not the speci...

Here's what I found on the web: <i>Brachyplatystoma juruense</i> has been reported from the Jurua, Puru, Solimoes, Apure and Aguaro River drainages, and there are no records of <i>Z. zungaro</i> from the Rio Madeira. Other large pimelodids found in this drainage: <i>Pseudoplatystoma fasciatum</i>, <...

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Heok Hee

That's <i>Chaca bankanensis</i>, and it's commonly found throughout most of Southeast Asia (Peninsular Malaysia, Sumatra and Borneo).
Less commonly encountered in the aquarium trade is <i>Chaca chaca</i> from India.

Heok Hee (a fellow Singaporean...check out my webpage)

Largest recorded size for this species is about 65-70 cm. I figure they will reach about 35-40 cm in an aquarium. Right now, it will probably leave your other fish alone, but when it gets bigger than its tankmates, it will most probably start to beat them up. The pleco may be heavily armored enough ...

It's a juvenile <i>Hemibagrus wyckioides</i> (Asian redtailed catfish).
If you are keeping it with other fishes, you might want to consider moving it to a tank by itself, as they tend to have rather nasty temperaments towards tankmates when adult.

Heok Hee

Jools is right, it is <I>Rita rita</I>. Sorry about the earlier confusion...the pic didn't show up.

Heok Hee

I thought cetopsids were commonly referred to as whale cats in the aquarium trade.

Heok Hee