Here's what I'm talking about... Haven't put any food in the tank for 2 weeks, just did a 75% water change, and replaced all filter media. The next day, brown algae on filter floss (the photo is 2 days after WC, no food)
**May have just figured out the nutrient source. I transferred over Nitra Guard bio-cubes from the last tank and had the bag sitting beside my return pump, just took the bag of cubes out and its pretty smelly. Maybe I'll rinse them off in NSW and put half back in
