With this floating solar air pump your fish will receive a healthy dose of oxygen whenever the sun shines. As the solar panel is fully integrated the pondxpert solarair float will not clutter up your pondside with wires or solar panels.air pumps act as an oxygenator and so are essential for the health of your fish especially in the summer when oxygen levels are depleted. Additional air leads to additional water circulation and a healthier pond.the solarair float is perfectly suited for the following ponds br • no fish 1,125 litres 247 gallons br • fish 825 litres 180 gallons br • koi 375 litres 83 gallonsaccessories included with the solarair float br • 1 x 4mm air line 50cm br • 1 x air stonesolar powered the solarair float is powered by the sun and contributes a good flow of air into the pond. No electrical installation required!