With an aquarium calculator, you can approximate heater size and temperature level targets

https://fish-tank-size-calculatoryvbz605.bearsfanteamshop.com/what-is-fish-tank-liter-calculator-and-why-are-we-talking-about-it

With an aquarium calculator, you can approximate heating system size and temperature level targets. Make more secure options for tropical, cold-water, or planted tanks.