Aug 24, 2020 #1 M Machete Aquarium Advice Apprentice Joined Aug 17, 2020 Messages 18 Location Detroit, MI Haven't seen anything like this. Any idea what this is and should I be concerned? Typical aquarium gravel for scale.
Haven't seen anything like this. Any idea what this is and should I be concerned? Typical aquarium gravel for scale.
Aug 25, 2020 #2 Brookster123 Aquarium Advice Addict Joined Nov 26, 2013 Messages 19,821 Location Mass Looks like.fungus growing on old food
Aug 25, 2020 #3 OP OP M Machete Aquarium Advice Apprentice Joined Aug 17, 2020 Messages 18 Location Detroit, MI Is this something harmful to the fish that should be addressed, other than vacuuming the substrate? I don't see anything growing on the fish.
Is this something harmful to the fish that should be addressed, other than vacuuming the substrate? I don't see anything growing on the fish.