Hello everyone! I’m not new to the saltwater world but I’m new to doing it right (tried to go budget friendly before and just ended up regretting it). I was recently gifted a nuvo 20 gallon tank and a nice, what I believe is a hang on back reffugium by one of my students who was getting rid of it. I want to do the tank right this time and need some help. The tank had some missing pieces and I’m kind of unsure where to begin. Attached are some pictures of things I do have. Really identifying pieces that I need/ how the heck to set this thing up, or any videos that you all have that would help a lot (like a tutorial of sorts maybe on YouTube, I haven’t been able to find one).