First of all, nutes (nutrients) and food are the same thing--just kind of different terminology.
You can make your own super soil if you want to--there are recipes in the organic section. If you are growing organic, the pH should take care of itself. If not, pH is very important and will need to be checked and adjusted. I recommend you read up some of what cannabis needs in the way of food during the different phases of its growth and then YOU can look around in S. Africa and find what you have available that needs the parameters. Otherwise, you can make nutrients and organic teas out of garbage. Manures have to cook and age before you can use it. Fresh manure is too hot for plants and will fry them. Always feed weak strengths of nutrients when starting out and work up. You do need to get rid of that soil. There is no such thing as standard potting soil, so here are things to look for in a soil. No added nutrients, nothing that says "feeds for x months", nothing with too much bark or wood chips, something that feels light and porous.
Lighting depends on the size of your space. Lighting needs are figured by lumens per sq ft. For vegging you want a minimum of 3000 lumens per sq ft and for flowering a minimum of 5000 lumens per sq ft. Unfortunately CFLs are the least efficient of all the lights we use for growing--in other words you need more watts (more electricity) to supply the same amount of light to the plant.The lights you have now total 103 watts and are probably putting out around 6300 lumens, or enough vegging light for a space 1' x 2'. For 3 plants you will need way more space than that, so that is more lights and then more yet when you go to flowering. And this many CFLs arew going to put out quite a bit of heat.
You need ventilation, usually in the form of a large exhaust fan, both to control the heat, but also to provide fresh air to the plants. The plants need a continual supply of fresh air (CO2) for proper photosynthesis.
This is a hobby that takes a large amount of knowledge and dedication....and a certain amount of money. The knowledge and dedication part are free, so I encourage you to read as much as you can so that you are familiar with what it takes to grow this great plant. The more you know, the better your chances for a successful grow.
