Nitrate vs Nitrite: What’s the Difference?
At a Glance Nitrite is the dangerous one. Aim for 0 ppm and act the same day if it reads 0.2 ppm or more. Nitrate is the far milder end … Read more
How to Lower Nitrate in a Fish Tank
At a Glance Nitrate is the end product of the nitrogen cycle, and only removal lowers it. Most guides aim to keep it under about 20 to 40 ppm. Change … Read more
How to Reduce Ammonia in a Fish Tank
At a Glance Ammonia should read 0 ppm in a healthy tank. If it doesn’t, stop feeding for 1 to 3 days, change 25 to 50 per cent of the … Read more
How to Reduce Nitrite in a Fish Tank
At a Glance Nitrite should read 0 ppm. To bring it down, change 25 to 50 per cent of the water with conditioned, temperature-matched water, cut feeding, add aeration and … Read more
How to Test for Ammonia in a Fish Tank
At a Glance The only safe ammonia reading in a fish tank is 0 ppm. Test with a liquid kit, wait the full time, and read the colour against a … Read more