- Reaction score
- More than 10 years
I have a 55 gallon acrylic set up for 3 months. The water seems to turn light yellow to dark yellow. Dosen't look like brown algae. I feed every other day. I run 2 power head filters and a 350 magnum canister filter. I have used algaefix by api and it turned the water crystal clear. Not sure why. I have done partial and 70% water changes before trying the algaefix with no success. All parameters in aquarium are stable. Ammonia,nitrite,nitrate,ph and phosphates. My light is on about 11 hours a day.