cheep growing solution

[Nutri]

Hello Ron (or whomever can answerer my query) I just started out on my hydroponic quest and I was trying to find some cheep growing solution. I remember finding a place on the web that had some in dry form for only $5.00 or sow. But please give me any information you might have. I'm just a beginner.

[Ron]

The cheapest I have ever used is Nutri-sol but I can't find it anymore. So now I mix my own.