It's a 400mm cube that I made myself, 70w HM lighting, Co2 and daily ferts.
Yup, hairgrass in the front.
I have since broken it down and re set it up as a Killie biotope, but it is not looking too hot at the moment, and the Harigrass won't grow without the Co2, but if I reinstate that, then I think my Val may melt.