Im from Hull and I sometimes travel a bit for my fish and dont mind going far for something special.
I guess my LFS is probably Maidenhead @ Beverley which is a decent shop. I some times out talk the staff though but they still teach me a bit now and again though, just wish they knew more about SA/CA cichlids lol gotten expensive recently though but I go there for all my food.
Ings Lane on the same street is a nice little shop get some good fish in now and again staff are pretty decent and always there to help. Pond stuff is amazing and well worth a look
Northfield Aquatics quite a new one and very close to the above two getting better but for some reason I wouldnt buy fish from them I dont know why but I just dont trust them - dont get me wrong no valid reason as to why I feel that way just me being daft.
4Pets an other grouped near these three - terrible dont go, good for dry goods but fish are pretty bad tbh sometimes a lot of dead fish in there and the stock is just quite basic and with the other three around I dont know how they can compete.
Then when I travel further afield
Ferrybridge Aquatics in Knottingly - Very good shop, top class owner winner of 2009 best shop in the North. Very good fish good selection lots of rare fish and he caters for all tastes and tank sizes but he is getting a bit prone to white spot at times which has put me off recently. Still amazing shop at the best of times.
Fish Inc in Sheffield - Just as didz said utterly amazing I just walked in and my jaw hit the floor while I realised how big it was there were so many fish in there I wanted it was incredible honestly well worth a long drive to get there I cant imagine you leaving disapointed.
Im going just for a day out there soon haha want to check out the other sheff shops.
I want to check out the west yorks shops that got mentioned above now esp QSS and tingley
Wills