300 gal.

[fishy12]

If u had a 300 gallon tank. And u had to have a bio in it. What would u have?

 

[crowconor]

scrubbies and bio balls in a sump or big filter

 

[fishy12]

What is the real name for scrubbies?

 

[crowconor]

pot scrubbies i guess.....you have a family dollar or a dollar store they will have them.....or pm zennzzo

 

[hillbilly]

SeaChem pond matrix, or Poret foam sheets.

 

[tcarswell]

Ceramic rings in bulk. Or a wet dry with scrubbies

 

[Open Water Predator]

If space is an issue, check into fluidized bed filters.

 

[hillbilly]

If space is an issue, check into fluidized bed filters.

Yes, those are good too. We have sand filters installed on large display freshwater tanks at our local science center. They work well.

 

[Fry]

Eheim 2260 stuffed with Ehfisubstrat Pro.

 

[Deepsouth]

bioballs and rings.