Eric Triplett is a man that does youtube videos about making ponds, pond equipment, and other things that have to do with ponds. He gets specific so he will have certain videos that are ponds just for things like koi or JUST ponds for frogs & toads. Very helpful if you want to have wildlife in your own backyard! He also does a lot of stuff specifically about koi, not necessarily koi ponds.
Some of their videos
Frog Pond | Build a Pond for Frogs – Part 1
This is part one of a 6 part series of how to build a DIY frog pond
Pond Construction – Ponds Gone Wrong – Episode 1 – (Part 1)
Koi Pond Construction | Pond Layout & Design – KP 1
In this video, he shows you how to make a koi pond
Pond Care | Spring Pond Maintenance 1 of 5
In this video, he shows how to do some pond maintenance
Puzzle Shift Create – Creator type: Engineer!
This channel is a great example of an Engineer. In Innovative Arts class, students are learning how to become creators themselves. They start by learning the basics: Engineer, Designer, Digital Creator, Hacker, Entrepreneur, or Wordsmith.