looking for some advice on the worm tea brewing.i'm using an old sock hung in a bucket with the pump circulating the water over the sock with the castings with a little kelp extract and molasses added along with a air pump. should i also be adding benficial bacteria or fungi to the brew? how bout hydroenzeme or fulvic acid? also i'm getting a good foam on the top but the ph went down to about 4 and started at about 6.5.