Cordylancistrus or
Dolchiancistrus is a possible good ID. Comparing with the pics of
C.torbesensis at Cat-elog, the shape is very very similar and the interopercular odontes a bit bigger. Also, according to J. Armbruster, have 9 soft rays in dorsal fin, and this shows a
Dolchiancistrus.
I can´t find any pics of L225 to make a comparison.
Ask at LFS and these fishes, the L276 and the possible L225, come from Peru; perhaps share place of export? they cohabit in a nearly basin? L276 captured at river San Alenjandro, Peru, and the L225 in Colombia, perhaps at the Orinoco's high basin, or Magdalena basin or Negro basin?.
Regards