Hi,all member.. I'm new at this forum and from NY. try to start CRS with moss plant. my CRS tank was 36"x12"x16" 30 gallon. could not make decission my self to go which kind substrate.:confused1: amazonia substrate cost $44 ship and need more time cycling! seachem (flourite) contain copper 17 as i know not good. can any one please advise? i do a lot reading on here on there but really confused.