Tomatoes are heavy feeders. I plant my tomatoes deep. I take off the lower leaves and plant them up to an inch of the lowest remaining leaf. Even when I use MG potting soil, I still add about a 1/2 cup of starter fertilizer. I use either citrus or tomato food. I feed about a tablespoon more fertilizer in each 20 inch pot at first flowering, first fruit, and monthly thereafter. You would have to add twice that if you are doing organic (tomato tone is a popular one) and supplement with fish emulsion weekly.
They like to have at least 6 hours of sun as as they get bigger they demand a lot of water.
Happy gardening in Hawaii. Gardens are where people grow.