Thanks all I'm gonna get a starlight BN tomorrow £3 bargain!!
This is the L183 pleco,
http/www.planetcatfish.com/catelog/species.php?species_id=221 ...
L183s have a really bad success record in anything but soft water, so unless you have soft water, they would be a bad choice.
However, if you live in a hard water area, I may have positive news: "Vickiandkev" were advertising tank bred L183s not so long ago, raised in moderately hard London tap water. They may have a new batch available, check the classified section and/or send them a PM, they are very approachable and have great history of keepiong and breeding catfish (not to mention an 8-foot long self built tank for 30+ Clown Loaches).