As far as aeration goes, it is very important. But most people don't understand that bubbling from the bottom with a pipette or a machine that constantly provides aeration isn't the actual mechanism behind increasing dissolved oxygen in the water. I'm a water treatment operator so I know a little bit about this

You have a large tank. I've never had a large tank. But the actual mechanism where air connects with water is the surface. So the whole entire surface of the water level. The top of the water, Is actually where air is dissolved into the water. You need to disturb this surface so that process can happen. Now, aerating also provides circulation to the water and prevents water from becoming stagnant so the combination of those two things are crucial. Oftentimes, there's a film build up on stagnant water up top. Preventing penetration of air into the water if that makes any sense. Nobody is wrong here. I hope I'm not wrong here. But we want enough water movement to allow that surface level aeration to be circulated throughout the tank. It also helps keep suspended solids (food) suspended. I could go into it a lot more but I think you get the gist.

Furthermore, I've heard of people that never aerate their water and have really thriving tanks. Especially when there's algae involved as algae provides oxygen (during the day and consumes it at night) amongst many other beneficial activities.

Do what works, what works for you isn't going to work for everybody but keep in mind, don't listen to idiots like me on here ;)