So it has been a long time since I have asked any questions from AC, but I am getting ready to set up my new 40g breeder. I want the tank planted, I have 2 planted 10g tanks w/o co2 and I want to try it in the 40g. So my Question is about CO2 Booster Liquid. Has anyone used this and is it safe to use with fish/invertebrates? Or will it be simpler to set up a DIY co2 with 2 2liter bottles?