I have a 90 gallon that has been up and running for almost 2 months. I am finally getting my lights on Friday and will slowly add corals...I have just 3 fire fish..and a little CUC. I would like to start dosing my tank with some vodka but whats the rule on adding vodka. How much for a 90 gallon and how often? Should i wait till i add more things to the tank? Please feel free to excersise your freedom of speech!