^ I disagree. Living soils shouldn't need much meticulous work or maintenance or pH adjusting... the bulk of the 'work' goes into putting it together, but after that it more or less takes care of itself. This is the purpose of the living organic\super soil: we're creating an environment for the plant roots which is also thriving with microbial activity, rich in organic matter, able to hold onto nutrients and supply oxygen while retaining moisture. Cannabis\plants in general didn't evolve alone and have been able to grow without being fertilized by humans for the larger part of their existence.
In the soil they have and seek the assistance of microbes either directly or indirectly. So without getting into too much detail for those who might not be aware, plants in nature form various symbiotic or mutually beneficial relationships with organisms that live in the soil. These include fungi, bacteria and archaea (single celled organisms which are very difficult to distinguish from bacteria). Other microbes: protozoans and nematodes live in the soil and typically eat bacteria and fungi, but may eat other microbes including other protozoans, while some nematodes attack plant roots (some fungi parasitize root-eating nematodes).
Microbes do various things for plants/plant roots, while plant roots secrete various substances (such as carbohydrates) into the rhizosphere (root exudates) to attract microbes or stimulate those already living there. Some kinds of microbes are also found living on leaf surfaces, not just on\near roots. Some fungi (mycorrhizae) form intimate relationships with plant roots and seek out water and minerals which may not otherwise be available to plants. The fungi can go places that the roots cannot, and fungi have enzymes (e.g. to release ions locked up in larger compounds) plants lack. There are also bacteria\archaea that fix plant available N from the nitrogen gas in the atmosphere (Azotobacter, some Bacillus, et al). These and other microbes are also responsible for producing phytohormones, vitamins, even anti-microbial compounds (this is where modern medicine gets them from). The bacteria which dominate the substrate produce an alkaline bio-slime.
Already more than I wanted to type... but anyways, the thing of it is adapting this to container growing; we're kind of limiting the amount of space the roots have to stretch out and consequently the amount of organic matter/nutrition in the container as a whole. Some people use extra-large containers and then just water or water with blackstrap molasses throughout the entire or majority of grow. That's about as easy as it gets.
Only thing I can say about soil/potting soil and pH is that you cannot underestimate the importance of garden/dolomitic lime, even in a bagged mix like Ocean Forest. Just add a tablespoon per gallon of mix. Micronized dolomitic limestone if available. Oyster shell flour is CaCO3 and only supplies Ca. What this does is neutralize the acidity (hydronium ions) in the mix over a period of weeks\months. If you do this then you do not particularly have to worry about the pH of your fertigation solutions. You might want to re-apply lime after a month or more, or use more initially depending on the circumstances. For example if you don't plant on transplanting for a while, or for a long-flowering Sativa, or if you are using rain/distilled/RO-water with very low dissolved mineral content. If you as using tap water or well water with high TDS and a high pH on it's own, this is probably due to lime dissolved in the water already... therefore you could use less lime in the soil or perhaps not require it at all.
Really though, you can just add in the lime and you should be able to grow in this mix without worrying about pH so much. If you use low-TDS water with it you're going to want to use dolomitic limestone for the Ca and Mg as well. You might also consider something like Azomite, Excelerite or Rare-Earth prior to planting; or a liquid Ca/Mg/Micro nutrient. After a few weeks of using water only or water/blackstrap, keep a close eye on the lower growth and begin light feedings when the the lowest leaves begin to fade.
