LILYA 12″ Long Airstone This 12″ Long Airstone provides gentle, consistent aeration for aquariums and ponds, helping to oxygenate the water and improve circulation. Basic...
Suitable for aquariums up to max: 350L
Max. flow rate: 1100 l/ph
Max. head height, metres: 1.40m
Suitable for freshwater: Yes
Suitable for saltwater: Yes
pH is the measure of acidity and alkalinity in your pond. Generally, we try to keep it at a measurement of about 7 which indicates neutral water. Lower readings indicate acidity while higher readings indicate alkalinity. koi and goldfish favour alkalinity over acidity so are happy with readings up to 8.5.
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