smashley09
Aquarium Advice Apprentice
I have a 40 gallon, fully cycled tank. I added Manzanita Driftwood to the tank as well as live plants. I am using Flourish fertilizer, twice a week, and the API CO2 Booster daily. I have a light white film that develops on the top of the water. I use my net and remove what I can and it returns each day. I have changed the carbon, and refreshed the filter pads with water changes. Any ideas on what is causing this and how to control it?