Friday, September 23, 2005
Koi Pond Dynamics Ammonia level after feeding toxicity oxygen percentage metabolic dependant constant ammonium
The higher the temperature the faster the metabolic rate and the quicker ammonia will be released into the surrounding water. However, there is another dynamic related to ammonia - the toxicity of ammonia (NH3) is not constant during the course of a single day. Ammonia is found in two forms in the pond. The toxicity of ammonia is pH dependant. Ammonia changes from ammonia to ammonium (NH4 ) as pH drops i.e. it becomes less toxic. As pH rises (naturally during the day) the ammonium (or a percentage of ammonia) converts back to toxic ammonia.
Whilst very high pH above 9 makes a higher percentage of ammonia more toxic and has certain negative effects on Koi, low pH had other effects on the pond system. For example, the bacteria in the filter are oxygen and pH dependant."
Wednesday, July 06, 2005
Friday, June 17, 2005
Tuesday, June 14, 2005
Kohaku are arguably one of the favourite if not the most popular Koi kept in the hobby today. The very reason for this is not hard to fathom - a good quality Kohaku with crisp clean red (hi) patterns on a snow white body background makes for a stunning sight, and unusual for any fish."
Tuesday, June 07, 2005
Improper seasonal feeding can lead to a build-up of toxic ammonia, which stresses fish and reduces their winter survivability. When the water temperature drops to approximately 65� F, start feeding with Spring & Autumn Pond Food. This type of fish food is better suited for the dietary requirements of pond fish in cool water and won’t pollute the water with excess ammonia. Some water gardeners continue to feed their fish until they no longer come to the surface. I stop feeding my pond fish when the water falls below 42� F. "
Thursday, June 02, 2005
Pond water will flow from the bottom drains of the pond up the pipes in the direction of the red arrow as shown.
An ideal settlement chamber will be sloped from shallow to deep. The bottom drains will all face upwards and be located in the deep end of the settlement chamber, whilst at the opposite side on the shallow end of the chamber the exit pipe that feeds the primary mechanical filter stage will be located.
Being located higher than the bottom drain pipes increases the likelihood of the solids entering into the settlement chamber being collected in the deep end.
And YES, this does mean you need a waste flush valve located somewhere near the deep end of the settlement chamber so that you can flush all these nasty solids straight out and off to waste.
Settlement chambers - essential ...
What is a settlement chamber?
Click on the picture above for an enlargement...
We have seen that bottom drains are essential in a Koi pond. We have also seen that 110 mm piping is the way to go on bottom drains and that we don't want pumps in the water path before mechanical filtration takes place.
A settlement chamber is a smallish concrete chamber that has the 110 mm bottom drain pipes entering the bottom of the chamber vertically.
Wednesday, February 09, 2005
'You get a lot of good belly laughs watching the dogs do silly things,' said Claire Wong-Ostapowicz, the founder of the group. 'We have three Koi ponds and one of the dogs always goes in. The shock on the owner's face is hysterical. They just want to crawl under a rock.'
Wong-Ostapowicz, a 44-year-old Wallingford resident, started the group seven years ago with about five other people. She said the group is up to 30 people.
Rat terriers are descendents of Manchester terrier, Italian greyhound, beagle, fox terrier and toy fox terrier, Wong-Ostapowicz said."
Building Koi ponds for dogs?:
Wednesday, February 02, 2005
Announcing Latest Version of "Garden Bridges" Written By: Rod Bird :: MediaSyndicate :: Free Press Release, PR, IR, News Post & Media Relations