I recently just bought about 120lbs of what was dry rock from someone whose tank had crashed. I brought it home and bleached it for 2 days. I plan on putting it in a vinegar solution for another 2 days. What I would like to do after the vinegar is to mix up saltwater and put the rock in it with a heater and powerhead and start to dose bacteria. My tank I currently have has been up for almost a year and im just going to replace the rock in it. I want the rock I am currently bleaching to be established with some bacteria first. What is the best thing to put in the saltwater with it to start the culture.