most efficient bio media

[epond83]

Matrix seams to be pretty good, here is a interesting read http://www.seachem.com/support/SpecificSurface.pdf

 

[CClump]

i like the matrix and eheim substrat pro
if you go the matrix route..they do float at first just a fyi

 

[Spiritofthesoul]

Matrix

 

[sponger_2]

if money is no object, and even if it is, the best submerged media is gonna be bio-home, bio-home +, and bacteria house. go on arofanatics and look at their sumps. Or you can just do ceramic rings.

 

[m1ste2tea]

a lot of people recommend the seachem pond matrix for sump filtration, and regular seachem matrix for all other applications, I personally use it and have been very happy about it on all aspects... however it gets a bit expensive.

 

[rhodes_96]

Seachem matrix