... but the aquarium was a complete new set up as I went to a dirted planted tank. I had to do the complete cycling with that one. Thankfully I either had enough pumps/filters I could just use
them with old cycled media so I still had active bacteria working even with the new water....
What size dirted tank?
Have you seen my indoor pond/dirted tank setups?
https://www.gardenpondforum.com/threads/soil-substrate-pond.17305/
tbendl, if you never see ice, then you have lots of time to properly set up a temporary pond with a biofilm layer.
If this was my project, my timeline would look something like this:
-set up and fill temporary holding tank, and move as many submerged objects as possible from the old pond into the holding tank. (day 1)
- add ammonia and monitor ammonia and nitrite levels in the holding tank using up to date testing kits (day 2 to 30)
-once ammonia, nitrite and PH levels match the old pond, transfer fish to temp holding tank (day 31)
-empty old pond and replace liner (day 32)
-fill new pond and repeat procedure that was used for setting up temp holding tank (day 33)
-transfer fish to new pond (day 63)
-empty, clean and store temporary holding tank for possible future use. (day 64)
Give yourself a couple of months for this project. There is no need to rush.
Transferring submerged items from the old pond to the temporary one and then back into the new pond will speed up the process.
Oh, and you mentioned a "bog", what is that?

I know what a "wetlands filter" is.
.