My Tankone of the many)
75 gallon standard
2 seperate fixture t8 40watt 6,500K bulbs
2 gallon yeast bottle DIY co2 with store bought glass c02 diffusers
50/50 mix of gravel and "carb-sea floramax" as substrate
1 bottle of "api c02 booster"
some fish (bala sharks, ghost knife, african feather-fin, discus, dinosaur bichir, glass catfish, pleco, gourami)