nitrate -80 ppm
filter--Fluval 405 with good carbon,carb/ammonia bags.Filter is cleaned/carbon replaced every 30 days.
Occupants--2 large Oscars
Just wondering what would be a good way to reduce the ppm of nitrate? I have done 25% water changes/gravel vac every other week.I then ad fresh water,then treat the water with conditioner that eliminates nitrite,nitrate,chlorine, chloramines . My tank is growing algae on the back glass and plants,and the nitrate level has me a little worried,but it does not seem to be getting worse than this around 80 ppm.
Should i use a tap water filter when replacing fresh water?.I have read that most tap water supplies have nitrate.
All of my testers (ph,nitrite,nitrate) are API 5 ml. tube&droppers
These pictures are of the back of my tank ONLY 1 week after cleaning the glass.
I log onto this forum 3 times a day,If there is any other info needed.