I am new here and its very cool and helpfull i might add. But I just got approved for my first house and I have been planning on building another pond since my parents moved us away from the pond me and my dad built. I am looking for anyone that might be able to give me an ideas of gallon to fish ratio or even gallon to tadpole/fish/plant ratio. I dont plan to make anything to huge but decent size.SORRY IF THIS SEEMS LIKE TO MUCH FOR ONE POST. But i am also curious on filtration methods and ideas for the decent sized pond. Me and my dad put a pump in pond that pulled water into a trash can we customized to be the primary filter filled with lava rocks and other filtration. The water went from there to a wine bucket we customized to be a waterfall which also had a little filtration in it. Sorry again if it seems like a lot but I am just looking for the best cost efficient good way to set up my first pond. I have been planning it in my head no for a couple years now. I also know i want to use tarp so i can customize its shape and size. Any help on these to isues would be greatly appreciated. I am not new to fish just garden ponds so i have a pretty good knowledge of aquatics.