Hi Ruddy roach, I presume you mean the Leeds & Liverpool canal.
Squats will bring you the small silver fish as will pinkies, in your local stretch of the canal, you could perhaps loose feed squat and use pinkie on the hook. I always try and use a slightly bigger hookbait than the loose offerings..........caster as hookbait always seems to bring a bit more "quality" fish.
This time of year while the water temperature is up you could try fishing with hemp on the hook, but it is a bit difficult unless someone has shown you how to do it and when to feed it etc.
Are you off school this Monday coming, 'cos I will be fishing the Leeds & liverpool, with hemp by the football field at Saltaire.
If you need any more info e-mail me and I'll try and help.