I've had great results with Pro Mix high porosity. I've used General Hydro's Flora Series, Botanicare's Pure Blend, Advanced Nutrient's Connoisseur, and Canna's Terra and Coco mixes. I prefer using Canna Coco on Pro Mix because the media has a very low NPK. I start by transplanting my cuttings into half gallon pots using 8 ml per gallon of the A and B, 15 ml per gallon of Rhizotonic, and 4 ml of Botanicare's Cal-Mag I mix this into RO'd water and pH it at 5.8. I give each 1/2 gallon pot about 300 ml of this mix and place them under t5's with the bulbs about 12" above the canopy. You can pretty much follow Canna's chart after that except you're Cal-Mag will slowly raise it will need to be at about 8 ml per gallon for most large plants. If you notice purpling of the stalks or purpling on the veins of your leaves raise your Cal-Mag.