I was asked to start a thread about this picture in particular.
It was almost 20 years ago and the pics were taken with a 1 megapixel camera, that was a high end digital camera at that time.
Briefly 20 NLX on a 3 metre x 1 meter NFT deck, nutrient film technique, recirculating hydroponic system.
3 x 1000 watt HPS (1000watt/metre square)
Plenty of oxygen added to nutrient tank via a high blow air pump.
3 decks on that side of room each with the same amount of plants and lights, approx 2.4 metres tall.
Enjoy and ask any questions you if wish to know anything else, but please be aware I suffer with short term memeory loss. 
