K kevfiz Fish Crazy Joined Feb 26, 2017 Messages 275 Reaction score 13 Points 18 Oct 20, 2019 #1 Hi all. My plants have dark marks on them. There is no furr or fuzz like an algae what is this?
Colin_T Fish Guru Supporting Member ⭐ Joined Jan 26, 2008 Messages 41,873 Reaction score 26,331 Points 113 Location Perth, WA Oct 20, 2019 #2 can you post a picture of the plants?
