Both filter types can keep the same tank clean — the real decision comes down to noise, media capacity, and where the tank sits.
Undersized heaters run constantly and still can't hold temperature. Oversized ones can cook a tank if the thermostat fails. Here's the actual math.
Watts stopped meaning anything useful once LEDs took over. PAR and spectrum are what actually determine plant growth.
An air pump isn't about oxygen the way most people assume — the real benefit is happening at the water's surface.
An automatic feeder solves a real problem for travelers, but it introduces a new one for anyone prone to overfeeding.