might be worth a trip down the road to scarborough whilst im that close to have a look. Would be rude not too, might be able to convince the other half to allow me to get a bigger tank.
There doesn't seem to be any shops in Whitby itself according to yellow pages. The nearest ones would seem to be absolute aquatics and tropical house, both in Redcar, and a couple of shops in Scarborough. Tropical house is a funny shop, different fish from other shops, lots of small tanks all with loads of plants and algae in them, but I've never had a bad fish from there. Absolute auqatics is fairly new, but back in January they only had run of the mill fish.