With an aquarium calculator, you can estimate heating system size and temperature targets

https://fish-tank-capacity-calculatorazky599.raidersfanteamshop.com/10-sites-to-help-you-be-a-pro-in-how-many-fish-in-tank-calculator

With an aquarium calculator, you can approximate heating unit size and temperature level targets. Make much safer choices for tropical, cold-water, or planted tanks.