HarleyK;3242540; said:Howdy,
I'd go with EhFi Substrat. Bio-Glass is similar to Sera Siporax, and I wasn't too happy with that. It creates too much empty space in between rings.
HarleyK
Yup thats why I got substrat to go in my Fluvalvelanarris;3244116; said:Eheim's substrates have some of the highest surface area out there. It defeats bioglass by a wide margin last I checked.
velanarris;3244116; said:Eheim's substrates have some of the highest surface area out there. It defeats bioglass by a wide margin last I checked.