Snowfire
Aquarium Advice Activist
Have a 29g planted tank which has been running over 2 years. Recently a film developed on the surface and each time I remove it, it comes back within a few days. It is a very thin film and is green in colour.
All the fish and plants are fine and water parameters are normal for the tank. Any ideas what it could be?
All the fish and plants are fine and water parameters are normal for the tank. Any ideas what it could be?