[Patrick Guhmann]

I bought “Lavastreu” (Winterstreu) from the company “Hamann” at “Hornbach-market”. The substrate is brown Lava and Basalt (Eifel?) 1:1. Granulation is 1-5mm (max 10mm). It is not very sharp-edged. The prize is very low (36Cent/kg). The substrate does not effect pH or hardiness (tested in a glass of osmosis – water) and looks nice and natural.