Jul 21, 2020 #1 J JohnH123 New Member View Badges Joined Mar 25, 2019 Messages 16 Reaction score 7 Rating - 0% 0 0 0 Hi Folks, This has been developing in my FOWLR tank for a while on a single piece of rock. Any ideas what it is and is it good or bad? Thanks in advance, John
Hi Folks, This has been developing in my FOWLR tank for a while on a single piece of rock. Any ideas what it is and is it good or bad? Thanks in advance, John
Jul 21, 2020 #2 AdamD76 Active Member View Badges Joined Nov 21, 2015 Messages 493 Reaction score 606 Rating - 0% 0 0 0 Sponges. They will filter your water.
Jul 21, 2020 #3 OP OP J JohnH123 New Member View Badges Joined Mar 25, 2019 Messages 16 Reaction score 7 Rating - 0% 0 0 0 Thanks Adam, I appreciate you taking the time.
