Like Qwizoking suggested, let the top of the soil dry out in between waterings. Its important that the soil is allowed to dry out and allow some air in there. This will help prevent root rot and fungus.
I know quite a bit about nutrients and am happy to offer any suggestions. I've used damn near every major nute company out there. My friends and I always seem to have deficiency issues with FoxFarm, especially calcium. See, calcium is a strange element in that it has a tendency to bind with other elements to create new compounds, so to avoid having this happen, a lot of companies will not put enough if any calcium in their products. This is why I use multi-part nutrients. Advanced Nutrients and General Hydroponics are both pretty good, but pricey, especially AN. I found a small company 2 years ago out of Louisiana called Blue Planet Nutrients and their prices were super affordable, so I tried them out. I was blown away. I'm using their 3 Part system with a bloom booster and I'm getting crazy harvests, in dont even need to add calmag. Every bit as good as AN but for about a third of the price. So you may want to check them out. Their organic nutes are good too, but I use the regular ones.
Rrog, thanks for sharing that info on the drip system. I'm a DWC guy, but may check that out for some small shrubs I'm growing in soil.
