Nov 14, 2020 #1 Dj City 2500 Club Member View Badges My Tank Thread Joined Mar 16, 2017 Messages 3,163 Reaction score 3,407 Rating - 0% 0 0 0 Can anyone let me know what this is? It's growing on the back wall of the tank. I just noticed it two days ago and I have no idea what it is.
Can anyone let me know what this is? It's growing on the back wall of the tank. I just noticed it two days ago and I have no idea what it is.
Nov 14, 2020 #2 40g Nano Valuable Member View Badges My Tank Thread Joined Jun 21, 2020 Messages 1,829 Reaction score 959 Rating - 0% 0 0 0 I think it could be a sponge
