• You are viewing the forum as a Guest, please login (you can use your Facebook, Twitter, Google or Microsoft account to login) or register using this link: Log in or Sign Up

Cheap capping substrate (crushed lava rock)

My only concern would be how sharp the material might be for tiny root's?
 
I reckon in terms of how sharp it is it would be ok as it would be similar to eco complete substrate but am not sure whether it will be inert or if something would have been added to it?
 
No,I have used Eco-complete and the bag's I used were not as sharp/rough as lava rock which I have used in the past, till I noted pleco's scraping their bellies raw while scouring over the lava rock.
The lava rock I used was large pieces with anubia attached to them.
 
EC is really quite smooth, Flourite is much sharper, crushed lava I've touched (garden shop) was in a league of its own :eek:
Particle size looks quite variable, while established plants may invade such substrate, establishing a plant in this sort of substrate is more challenging - how big is the tank?
 
Hmm, maybe a sand would be more suitable, the tank is 90 x 30 x 45
 
Back
Top