Biofiltration Media

Good day.

Is the following media good for biofiltration:

https://www.builders.co.za/Garden-&...ries/LK-Lava-Rocks-(2kg)/p/000000000000056459

It is lava rocks thats being used for a gas braai. I heard that lava rocks make good home for bacteria.

 

Are the any additives?

 

I want to put this lava rock in one of the compartments of my sump that i use on my freshwater aquarium. As far as i know there is no additives in that rock. They use it in a gas braai to keep heat not to burn.

 

Awesome. I'm just skeptical about the source and how it's handled. You'd have to wash it thoroughly.

I think pumice stones (Sold as seachem Matrix in aquarium trade) or porous sponge would be the next best thing.

Good find. I never knew this existed at builders!

 

Lava rock at the pet store are much more expensive, thats why I am going to try those of builders.

 

I actually ordered 320g for $10 just a few days ago. I'll still have to pay R25 at the post office!

I googled the product you posted. Looks like a good size for a sump. May have to break it up to use in a canister.

 

This rock is good for bio media. Just very dusty, wash it well and it will be fine.

 

I have used it before for "moss rocks"

 

Okay cool and how did it work for the moss?

 

I have used it for years, also for my Buce's