Feb 5, 2022 #1 Andynz2000 Active Member View Badges Joined Sep 28, 2021 Messages 151 Reaction score 43 Location Australia Rating - 0% 0 0 0 There’s some on the back wall of my tank, in the sump, and overflow. What are they?
Feb 5, 2022 #2 Rtaylor Valuable Member View Badges Wisco Reefers Midwest Reefer My Tank Thread Joined Jan 6, 2021 Messages 2,184 Reaction score 2,356 Location USA Rating - 0% 0 0 0 Sponges
