The people on these threads are the Gurus of treating with oil!!!! Read through these threads and ask your questions there. These are the places that you will get the quickest and most accurate responses!!!
When you are looking for strains, you will have to see what is available in your area. For the strains you are growing, ! Buy Cannabis Seeds - Worldwide Delivery - Herbies Marijuana Seeds has a good selection and you can search by most popular, strongest etc. There are also many other great sponsors that could look at. Start with those three threads. Good luck.
Let the soil dry out well. How often are you watering? Believe it or not what worked the best for me was cutting back on water and hanging a couple fly strips. Post some pics and let's see what you have.