Mystery Fish, Still no Barbel

Well folks,

its been a while since my last post on your fav blog, I`ve been pushed for time and energy lately so lets have a quickie!, I managed to get a few hours freedom fishing the Trent with my dog PJ last night, he had a paddle while I caught an assortment of tiddlers, Perch and Chub.

I did catch something I`ve never caught before and I`ve no idea what it is, it pulled the tip of my feeder rod round into a good bend and initially I thought it was a good fish, I dared dream I`d hooked a Barbel at long last but alas no.

Though small, Ok tiny it put up a good squabble before I landed it, a very pretty fish with a blue tinge and large jet black eyes, any idea what it is?