First of all thank you for your time in reading and responding to this. I’m building a pond for the family to enjoy and have read for weeks about different ideas. I have finally determined what we want to do, but have a few questions.
We have a 750 gallon container with a bottom drain we want to use for a koi pond. We will partially sink it and then put wood around it for aesthetics. We plan on using an all in one pump/filter/fountain/ UV pump in this one. We have also decided to make a bog filter using the 300 gallon container and let it waterfall into the 750 gallon pond. Obviously this is a large bog filter, so I was contemplating putting a few goldfish and an air stone in this container also with the plants since it will be so oversized for the big container. Has anyone done this? Any idea on what size pump to use for the bog pump? Any suggestions as to what to be careful of? I know I’m probably way over filtering this, but I would rather over filter than under filter. The plants and paintwork will be moved further down from where it’s at later. We are moving the tanks around right now to see where we like them.
Thank you in advance for all of your insight and advice!