Hiya
I like in Milton Keynes and know of a few but as a new tropical fish keeper the jury is still out as to which are best.
Maidenhead aquatics in the Wyevale centre in Woburn Sands......good for equipment, nice selection of tropicals and some marines but not many cichlids the two times I have been in.
Pets at home....great for the 'common' types of tropicals and coldwaters
There is one in Bletchley called the Fish house i think but not been there yet
Hobbyfish which is 5 mins from my house...on the A5 towards Towcester
There is another in Towcester which had loads of cichlids and discus..unusual tropicals too
I am sure there are others and am interested to see your replies
Good luck
Jackie
xx