system volume

Howdy! I was wondering about the feasibility of using a Rubbermaid trash can that I use for water changes as a temporary second sump. Currently, I have a 75 gallon reef tank and eventually I would like to move all of that to my 150 that I haven’t set up yet. Long story short, I don’t think it...

I've always wondered what manufactures really mean when they give dosing instructions based on "gallons." For example, Korallen-Zucht and Red Sea give dosing instructions for their additives in terms of X ml or X drops per 25 gallons. Gallons of what? Is it based on the rated tank size (my...