Thanks for the reply. I have carried out the water change and added the carbon filter. Nitrite is still at 0.2 but hopefully it won't be long before it's zero.
Thanks again,
Claire.
Is there anybody that can advise me on what safe length of time I can continue to use Melafix and Pimafix. I have been using it for 2 weeks now, the 1st week I was doing 25% water changes daily due to a high Nitrite problem. This has now reduced dramatically but it still isn't perfect yet. This...