Marine will cost more in money and time though 2nd hand purchases will be cheaper and you can use natural saltwater,
Local marine will involve a chiller to keep temps down
Freshwater allows a wider choice of different biotopes and available species
They are native so can't be sold without a permit but you can collect your own
Most streams have these and they can be netted by running a net along the water weeds growing along the sides.
To start your own culture these are on trademe https://www.trademe.co.nz/a/marketplace/pets-animals/fish/fish-food/listing/3832552817
I have usually found them in farm water troughs if you have any local
Hi, there is usually not enough nutrients in the system until is fully cycled and become a stable living environment, then you can add a piece of rock with copepods to the system.
The hardest part is keeping the water in the tank while travelling, i have used clip down lid eskys before with a battery operated pump powering an airstone and a riser pipe to allow airflow back out opf the container, that and screw top buckets has been the most successful.
Gambusia need to stay where they are and water will get to cold for guppies to survive well.
It is an offence under sections 52 and 53 of the Biosecurity Act 1993 to sell, offer for sale, display, release, move or breed gambusia
Yes we have a native mantis shrimp you can collect in most estuarine areas in the upper north island.
https://aquariumworld.nz/databases/10-marine/1844-Crustacean-Mantis-Shrimp
Hi 9 tropical species are on the import list
https://aquariumworld.nz/databases/14-Tropical FWFishallowedinNZdatabase/
Some were available from Livin Reef in Christchurch recently but have sold out i think
Natives can be kept but not sold without a permit