Do you need to do water changes with duckweed in your freshwater aquarium? 

Today we find out if you need to do water changes with duckweed in your freshwater aquarium. Duckweed is a fast growing freshwater aquarium plant that people often use to minimise the need to do water changes with. We do a small experiment on duckweed and water changes in this video and show you the tests.
You be the judge, do you think you need to do water changes while growing duckweed in your freshwater aquarium?