ID please...

[butterfly_tm666]

http://www.aquariumadvice.com/forums/f70/tomasz-and-barbaras-tank-139715-2.html#post1259932

Acts as plecostomus - algae suction. Looks akin toRineloricaria regarding the colouring and caudal (tail) fin. The dorsal fin is definitely in the shape of one of plecostomus hypostomus/plecostomus.

With my best wishes
Tomasz

 

[butterfly_tm666]

Hmmm. Noticed that one changes its colour dependably on the surface it feeds on... Maybe it would help... Does it fall under possibly: Pseudorinelepis genibarbis?

With my best wishes
Tomasz

 

[gkuzel]

How large is this fish we are seeing here?

 

[gkuzel]

Pseudorinelepis genibarbis are usually grey in color, but as he said it does change? Not sure, on this one.

 

[butterfly_tm666]

It is greyish since yesterday evening. The fish is currently circa 4" long. So yesterday it changed its colouring because started feeding somewhere else. The spots from white& yellow became black.

With my best wishes
Tomasz

 

[gkuzel]

Google Image Result for http://thm-a02.yimg.com/nimage/5fc2738e6a30e498

Looks about right.

 

[Luna112]

Whiptail catfish? I have one.

 

[butterfly_tm666]

yes yes, yes, to the power of three yes this is whiptail catfish belonging to the very same family as plecos do

 

[butterfly_tm666]

Pseudohemiodon apithanos ? Lets remember its capability to change colouring