Getting ready to start a pond and was wondering which way I should go. I already have a 10'x4'x2' galvanized stock tank but don't know if I should go that route.

I have the skill to build a pond and the tools and the knowledge just wondering which way would be better.
This pond is going to house most of my fish in my 600 gallon tank.
Selling the stock tank is not an issue and building is not an issue. I guess my question here is should I just get a pond liner which I would do for either one and use the stocktank or build one?
Any thoughts?

I have the skill to build a pond and the tools and the knowledge just wondering which way would be better.
This pond is going to house most of my fish in my 600 gallon tank.
Selling the stock tank is not an issue and building is not an issue. I guess my question here is should I just get a pond liner which I would do for either one and use the stocktank or build one?
Any thoughts?