Hello, great video 😄. I'm a beginner and I have a few questions : 1) Do you have the link to buy the airlift you used? 2) Do you have a drawing showing your entire structure with the list of all the components, the connections, and their positions? 3) How did you connect your airlift to the installation? 4) Do you have temperature sensor and ph meters in your installation? If so, did you use Arduino or raspberry to program them? Thank you in advance. Cordially.