Water Hyacinth

Even though it was once considered an ornamental plant, this pest can be very destructive to New Zelandswaterways. It is mostly found in the warmer areas like Northland and Auckland. Read this page

Here is something unusual. Apparently you can use barley straw to control algae ...

For some reason many aquarists also have an interest in carnivorous plants (and often other unusual plants and/or animals). This article will give an insight into how these plants can be cultivated and enjoyed at home.
More canivorous plant ...

The first thing you will need to setup a miniature planted tank is the rules and judging standards. From this you can work out just what you can get away with. At the FNZAS conference in Hamilton there was a National fish show. One of the sections was for miniature planted aquaria.
Lets look at how to setup a miniature planted tank ...

Recently a new initiative, the National Pest Plant Accord (NPPA), was introduced by the Ministry of Agriculture and Forestry, Regional Councils, the Department of Conservation, and other government agences with biosecurity responsibility regarding the sale of invasive plants. The NPPA directly affects a number of aquarium species.
The introduction of the National Pest Plant Accord has resulted in a number of species being declared as unwanted organisms under the Biosecurity Act 1993. As such they are banned from sale, propagation, distribution or commercial display.
Find out which species are aquatic pest plants