I am still in the planning process (and money saving process) for my 210 gal FOWLR
build. I am planning on using the 55 gal
tank I currently have as the refugium.
So my question is how big should the seperate sump tank be, would another 55 gal
tank be sufficent? Petco is having a $1/gal
sale and was going to jump on it.