0 wt is the size of the fly line/ gear used. 00 , 0wt being smallest , 12-14 largest. 12wt is for large saltwater species. 0wt twig water tiny streams. 5-6, large rivers or dams for larger trout.
Murray cod have a slot limit 55-75cm legal to take. Never eaten one so can't comment on what their like to eat. Keep trout occasionally. Ok but prefer Redfin.

BACK COUNTRY NT Hunting
Has a site and pre req a Firearms license
R license course
Hunt with or be a NT resident

Book in 7 days in advance admin fee and day fee.
The hunt with or NT resident is a very good idea as country is hard and conditions later in the year are extreme.
Lots of experience and or Km's are required for success!

Here's a few more pics of last couple of weeks.
meaty fallow Canberra pre 64 243

First cod on fly 8wt sage black purple 5/0

Mitch

75cm