Hi Scotty
If we are fishing the same canal and i think we are

its most likely Roach at my stretch there are "millions" of roach from 2" -2lb but most 1/2lb they rise freely and to date ive not managed to catch one

had them attack flys that are too big for them. 3weight has had alot more luck then me

im sure he will chip in.
Small jack pike are pretty easy to catch, i find an orange blob, yellow bunny bug, orange/yellow marabou thingys i tie up work very well..........mind trace.
There are some cracking Tench i spooked a couple of 3lb plus fish the other day whilst piking, never had them on the fly, reckon it would be FUN !!
Tons of perch

,y favorite fish

agian 3weight has alot more luck than me. Although ive caught them on damsel lures and my wee buddy had a cracker on my viva nymph

Mind perch dont like trace ..............
There are carp,never seen hide nor hair even when i course fished, my wee buddy even managed to catch a eel on the fly ...........well a rubber squid he was casting for pike
Twice i thought ive seen Chub out the corner of my eye whilst fishing ..........But ive never heard of any comfirmed catches
Theres also the "odd" trout ................never seen one but they are there.
Oh mind your fishing specs you will be suprised what you see
Keep us posted mate