G'day Dean welcome to PA. When it comes to fossicking or prospecting you need to research the regulations before making any plans for your intended area of interest.
Tanjil River is on the EXEMPT Rivers and Streams list and sadly any form of prospecting beit panning, sluicing or using a highbanker is completely off limits. To stay up-to-date with the regulations you need to visit the Earth Resources website and search Exempt Rivers and Streams, nothing is ever deleted just more added from time to time sadly.
Tried to share a link
unfortunately this new format is absolutely F%$#ing useless for people like me.
@Gold (staff as you like to refer to yourself as
) how about you simplify the function of adding links. I am just about done with this crap.
Mod edit:
Just need to copy & paste the website address RM. The new software does the rest.
https://earthresources.vic.gov.au/l...ick/rivers-and-streams-where-you-cant-fossick