Don't know why I didn't test sooner, but my tap water has really high nitrates! What can I do to reduce the levels as I've been changing my water frequently in the tank trying to bring my nitrates down? It's a 250litre heavily planted and heavily stocked tank. I'm reading a slight .25ppm ammonia reading on the tap water too. My tank tests are 0 ammonia, 0 nitrites, 80+ppm nitrates. Ph is 7.6. I have purigen, bio balls, ceramic rings, carbon, and sponges in my trickle filter.
Any help or suggestions?
Include a photo of my nitrates test on tap water.
Any help or suggestions?
Include a photo of my nitrates test on tap water.