Woops, sorry my info was round the wrong way, it was not only the reason that got lost in the past, half the brain went with it . Thanks fredrick_more, it makes sense not to reduce the temp of the whole pond by pumping the water up to the colder regions by leaving the lower section undisturbed.
I've had a pond for 6 years now and leave my filter going 24/7, I switch the UV off during the winter and keep an eye on the min temperature. If we are due an extreme cold spell I re-route the water via the cleansing output directly into the pond and cut out the external water course. With freezing water around you can quickly empty the pond if you're not careful. However as I'm based to the West of London our temperatures rarely get below -5 unlike you hardy guys (north of Watford) . For some reason I lower the pump to the lowest part of the pond during the winter (forgotten why, lost in the mists of time, I'm afraid). Regards Andy.
Just a sign off, to say many thanks for all your help, specificaly to longhairedgit. Strange to say but without the illness found in my Orfe I wouldn't have tracked down this web site: long may it flourish (the website that is, not the Ex-Orfe).
A special thanks to the Web Masters without whom this community wouldn't exist (in my experince they don't get the recognition they deserve).
I'm feeding a handful of pellets twice daily during the summer (local aquatic centre brand containing wheat flour, soya bean flour, soya oil, fish meal and permitted EEC antitoxidant). I drop this to once daily as Autumn draws in then move to winter food later.
Have just bought new tablet testing kit, having been told the testing strips and liquid aren't accurate. Water condition today measured 8.0 pH, .01 Ammonia, 10 nitrate and 0 nitrite. Haven't tested for o2 having been told that having a separate water course with 2 small falls should provide enough.
A colleague from work who used to keep fish in his youth has suggested I soak the food before giving to the fish, is this a good idea?
I got home this evening to find a dead Orfe and the airline out of the plastic container. Don't know how it happened, Cat or the Fish must have knocked it out. I opened the fish up and found it was full of slightly cloudy liquid, the internal organs looked okay as far as my fish gutting experience could tell. I'm still none the wiser as to what the problem was; any ideas?
PS I have photos if they might help but wouldn't want to upset anyone by posting them automatically.
I was offered the option to get an ultra-scan but it wasn't cheap and was at another surgery. No opinion was offered re consistancy of swelling, I was quite surprised she didn't handle the fish but just had a close look at it in the plastic container.
Fish is still pretty active and was splashing around quite a bit when I did a partial water change this evening, it quietened down afterwards.
What are people's thoughts about dosing the rest of the pond with Blagdon's Anti Parasite 5 day treatment. As I get frogspawn and baby fish I'm reasonably happy about the water quality and am just not sure about introducing Fornaldehyde & Methanol to the system.