Recent content by Brian422

Thanks. I'll change the water and try to lower the pH.

It could be. The NH4 was 0.8 at its highest. We did a 30% water change add bacteria. We had rapid plant growth and lots of algae growth but the plants have settled down and the algae growth is now under control. I don't know whether plant growth and algae growth can cause problems.

We have been keeping fish for a number of years with very little problems. We started up a new tank, (approx 200l) for Cardinals and Discus. A week later we introduced plants. We had the water tested after 2 weeks and it was fine so started to stock with Cardinals. Over the last 3 weeks, the...