This is Day 6 on my new 40 Gallon (36x12x20 and actually 30 Gallon according to calculator) with Amazonia, CO2, 96Wx2 6700K Coralife CF Light (8hours 96w, 4hours 192w). I put a small of aged flourite (abt. 2Cups) down first and have done 4 large water changes. Ammonia is 0, Nitrites are 0 and KH has finally back to normal (GH 120ppm, KH 70ppm tap water). I have an Aquaclear 70 with seasoned bioballs, carbon and sponge. CO2 is dispersed via a Duetto 100 mist with Milwaukee SMS122 controller. This is my first CO2 tank in about 2 years. I am waiting for the Algae explosion. Dosing is Equilibrium, N, PO4, K and CSM +B after each water change (every other day).