Erik
my problem is that I don't want to keep the substrate (crushed coral) and rather replace it with sand. That's why I thought keeping some of the original crushed coral substrate in a filter bag may preserve some of the original bacteria.
Web Member
Erik
my problem is that I don't want to keep the substrate (crushed coral) and rather replace it with sand. That's why I thought keeping some of the original crushed coral substrate in a filter bag may preserve some of the original bacteria.
Karin
Posting Permissions
Reply With Quote