Jul 6, 2021 #1 shanedag Active Member View Badges Joined Oct 18, 2020 Messages 190 Reaction score 287 Location Elmira Rating - 0% 0 0 0 Can anyone help me identify this white growth on one of my rocks? Is slowly growing to cover more and more.
Can anyone help me identify this white growth on one of my rocks? Is slowly growing to cover more and more.
Jul 6, 2021 #2 Goaway 10K Club member View Badges Hospitality Award Midwest Reefer My Tank Thread Joined Oct 17, 2020 Messages 18,126 Reaction score 65,195 Location Illinios Rating - 100% 1 0 0 looks like white encrusting sponge. Will help filter your water of excess nutrients.