Congratulations on the forum. The first thing to apologize for my bad English. I am from Spain and I have come here because there is a lot of good information. Now I have a 270 gallon pond, two pumps, one solar and one electric, and a pressure filter. I control the electric pump via Wi-Fi, because I don't live all week where I have the pond and I have an automatic food dispenser. I attach some photos of how it is currently. In the future I intend to build a bigger one.