I'm building my new sump and it looks like I will have about 20g of room for bio balls the area is 30x13x12. I currently have about 8g in my old sump on my 300. I have a heavy bio load though so I am upgrading. Will that 20g be enough?
lol, My 270 has a 55 gallon sump with about 35 gallons of bio-balls in it. Its way overkill but they were given to me by a friend. My friends are way to nice to me.