Hey great start you have here! I see you have been keeping fish for 8 years, but is this your first planted tank? If it is, then you are certainly off to a GREAT start! I have a 30g planted tank too, I personally think it's a great size!
What is the piece of equipment in the center of the tank on the back wall? It looks like an airstone but it also looks like it has a power cord? I've never seen anything like it, and as someone that has bubble walls or air stones in all of my tanks, I'm very curious about it!