get yourself a good compost tea recipe and grow the best!! and save money! better yet, let me give you a good one to start with:
place the following in the bag:
8 cups worm castings
8 cups alaskan humus shake these well then add following
8 cups ground oats
4 cups high phos guano
2 cups high nitrogen guano
1 cup green sand all this goes into bag then submirge
add these next 2 directly into the water
1 cup soluble fish
1/2 cup seaweed powder
brew for at least 24 hrs
remember...........this is for 55 gals we used 1 gal of tea for 10 gals of water