Has anyone had experience with Geosystem substrate. Ive tried looking everywhere for information and i cant find anything. The only hit i got on this site was from a question that was never answered. The hagen site says that the gravel has trace minerals and may buffer ph. The site also says that after some time the buffering capabilities will dissippear as the substrate matures. I was wondering what anyone thinks about this. Im just wondering because the only lfs no longer carries flourite or eco complete or any of the good stuff. It carries geosystem substrates and clown puke gravel. Someone please give me some ideas about this substrate because i need to know very soon if i should put an order in for fluorite. The tank is at my moms house and she cant stand it being there anymore (currently it has clown puke gravel and i would like to change it).