I set up my pond about 3 months ago and everything has been going swimmingly until the last few weeks.
I have 4 fish all with Cotton Wool fungus, 1 shubunkin, 2 comets and 1 orfe although these have all been new and smaller fish. Any advise on what to treat the pond with.
I have been taking samples of the water to my local garden centre regularly and they have been checking it for me with god results. Last week however although, oxygen, PH, ammonia, nitrate, connectivity etc have all been okay, the last test where 3 drops of some chemical is added to the water and it turns blue if the water is healthy, the water stayed clear or turned very very very slightly yellow. I was told that if it turned YELLOW then the water was definitely unhealthy and that I would need to do a water change. I was advised not to at this stage though because the other fish all seem okay and the plant life is thriving. new water lillies placed in the pond from B&Q which were really just small bulb like plants now have leaves floating in the pond which is 4' deep and other plants are all starting to bloom.
I have 4 fish all with Cotton Wool fungus, 1 shubunkin, 2 comets and 1 orfe although these have all been new and smaller fish. Any advise on what to treat the pond with.

I have been taking samples of the water to my local garden centre regularly and they have been checking it for me with god results. Last week however although, oxygen, PH, ammonia, nitrate, connectivity etc have all been okay, the last test where 3 drops of some chemical is added to the water and it turns blue if the water is healthy, the water stayed clear or turned very very very slightly yellow. I was told that if it turned YELLOW then the water was definitely unhealthy and that I would need to do a water change. I was advised not to at this stage though because the other fish all seem okay and the plant life is thriving. new water lillies placed in the pond from B&Q which were really just small bulb like plants now have leaves floating in the pond which is 4' deep and other plants are all starting to bloom.