They generate renewable energy, improve water quality in the treatment ponds and reduce ... New Zealand's first floating solar array at the Rosedale wastewater treatment plant in Auckland.

Before refilling the pond with water, make sure that the base ... Grow sufficient numbers of plants so that their floating leaves cover more than 50 per cent of the water surface.

Growing a lily pond at home adds a beautiful, calming touch to any garden or outdoor space. Lily ponds are low-maintenance ...

The weevils have evolved to only feed on the invasive floating ... ornamental pond plant. It forms dense mats which choke waterways, reducing oxygen supplies to fish, insects and water plants.