What's a good filter and heater for this size tank? I need a filter that would only require me to do a weekly or biweekly water change. Not planning to overstock the tank.
Do a sump. Or a big canister or two which are expensive or like 3 HOB filters.
In reality you dont need a heater specified for the tank. I live in Wisconsin where its really cold in the winter and a 29 gallon rated heater heated my 55 just fine.
I would get a canister filter or do a sump for a tank of that size. Power filters will require more changes since they don't hold a high volume of water like a canister filter.