I wouldn't be adding any minerals to your newly setup system as it is cycling. The goal of this stage is to let your tank achieve a balance of incoming waste and nitrifying bacteria. This will occur naturally (as long as there is a waste source producing ammonia). There will be several stages your tank will go through over the next 12-18 months; however, this first stage tends to bring a few issues along with it.
The first issue is learning patience
There are additives you can use in the tank to accelerate various portions of your tank's maturity. My approach would be to let the tank find its balance on its own. If it is forced down a particular path, it may be meeting your expectations but not its own and will eventually start to fight against your efforts as it finds a balance.
The second issue is there is so much information out there from various perspectives on what is right or not-as-right to doing things. In fact, the above paragraph was one example
This beginning stage is a great time to read/research/question topics to increase your knowledge and understanding. With luck, you can keep pace (or get a little ahead of your tank), but from a lot of what I have read, beginners to the hobby tend to eventually find themselves reacting instead of being proactive. Know that your tank is a living ecosystem and is usually your best "test kit". It will let you know when it is struggling, when it is thriving, and when it is content. Again, various perspectives on this, but I am looking for a "content" tank. While thriving systems are exciting to watch as it goes through an "explosion" of growth and activity, I tend to be a little cautious because of the saying "nothing good happens quickly in a reef tank".
I will stop here because I don't want to overwhelm, but I am looking forward to following along on your journey. Diana encourages you to start up a tank thread and I want to echo this. It is a great way of chronicling your journey, post progress, ask questions, and receive inputs/thoughts/guidance all in one convenient location.