Many thanks for your help. I've taken the coral out and will change 5 gals and the carbon filters tomorrow. Should I aim to change 5 gals weekly?
It's only one fish at the moment that is not right, a clown fish. Its face was really pale and it tried to hide at first and then sat on the bottow...
I did a water change three days ago using a gravel vac and also cleaned all the pumps and filters. I also have a leather coral which appears to have changed colour slightly as well.
Do you think it's worthwhile me doing another change?
Hi,
We came back from holiday recently and our fish who were being looked after well had all discoloured, I turned the skimmer level right up and the fish seemed to get much better. However tonight within about half an hour the fish appear to be distressed and are going pale. Since writing...