What
has happened?
Oxygen is consumed in the pond all the time. Normally it gets replaced by
the plants. In a pond with poor plant growth (especially in the first 24
months) more oxygen is consumed than produced due to decomposition
processes, particularly if the bottom of the pond is covered with silt.
Fish use up the most of the oxygen.
What
can happen?
Lack of oxygen occurs; especially at temperatures above 20°C in the
summer or in winter conditions. Additional build up of toxic gases in the
sludge reduce the amount of oxygen further. The occupants of the pond will
suffocate.
What
has to be done?
If fish come to the surface gasping for breath (especially early in
the morning) put OASE aqua activ "Oxygen
Stabiliser" in the pond immediately. Additionally aerate the water. If
the condition of the fish does not improve in the next 15 minutes the
reason is not lack of oxygen but ammonia poisoning. If the pH-value lies
considerably above 9.0 add "pH-value
Minus" immediately, but carefully, according to the instructions. Poor
plant growth - and therefore poor oxygen production happens often when
rain or tap water is added to the pond. OASE "Oxygen
Stabiliser" removes reliably any unwanted metal compounds and
strengthens the plants with calcium. Furthermore phosphate (the stuff
algae are made out of) is transformed into insoluble calcium phosphate.
Tip:
Especially the deeper zones of a pond suffer from a lack of oxygen.
Therefore apply "Oxygen
Stabiliser" regularly. If you use the product in late autumn it will
help the occupants of the pond to survive when a closed sheet of ice
encapsulates toxic gases.
Note:
The aquatic pollution in fish ponds consists mainly of protein. If you
feed more than necessary the bacteria present will die due to organic
overloading. At the same time lack of oxygen occurs. A test with the OASE
aqua activ "Test Kit" can 'predict such situations.
Solution:
OASE aqua activ "Oxygen
Stabiliser"
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