Ok ive done hydroponics before with mixed succes so far. Hey you live you learn. I decided to start again this year. DWC indoors, and kratky out doors. I'm using the Masteblend 3 part. I germinated Blake Krim heirloom tomato and heirloom Bhut Jolokia and they are still seedlings. I'm running nutes at half strength Ph around 6.4 I watered in about a quarter of a cup a of cold brewed kelp tea per plant so the ph came up some. 2 tbls tea extract to 1 gallon water.