Sandfilters Home › Forums › Diamondback Terrapins › Sandfilters This topic has 1 reply, 1 voice, and was last updated 12 years, 2 months ago by Stephen & Candace Chew. Viewing 1 reply thread Author Posts May 3, 2012 at 5:15 pm #23163 jonathancurtis626 Hi All. Can anyone tell me if it is ok to use sandfilters with brackish water? May 4, 2012 at 11:12 am #23165 Stephen & Candace Chew Hi Jonathan, welcome to the group – yes, sand filters can be used for fresh or marine water.-Stephen C From: jonathancurtis626 Author Posts Viewing 1 reply thread You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In