I agree with the others - your tank is looking great.
Can I make a suggestion? I have Espei's rasboras, which are closely related to harlequins. They are not fond of bright light, and I discovered they are happier with floating plants over their heads. Floating plants are also great at sucking up ammonia
It was University College, Cardiff (Coleg y Brifysgol, Caerdydd) when I was there. UWIST (University of Wales Institute of Science and Technology) and the National Welsh School of Medicine and Dentistry were separate institutions back then. I think they are all now Cardiff University. The University of Wales had 7 colleges back then - 4 university colleges (Cardiff, Swansea, Aberystwyth, Bangor), UWIST, NWSMD, and St Davids at Lampeter. My degree is from the University of Wales not Cardiff University.
As an undergraduate I was in digs for 3 years in what was officially Pen-y-lan but was one of the roads running south east from the playing fields section of Roath Park. As a post grad student I shared a flat in a converted house overlooking the garden section of the park.