But there are also species from closer to home , including eel , bream , gudgeon , asp , tench and zander .
Among the more exotic varieties are angelfish , neon tetra , the colourful Japanese koi and percidae from South America .
There are also species from closer to home , including eel , bream , gudgeon , asp , tench and zander .
Among the more exotic varieties are angelfish , neon tetra , the colourful Japanese koi and percidae from South America .