Hey, its awesome thinking of making a new tank. especially native because they are so wicked.
we have perch, bluegill, pumpkinseed, and bullheads. Would these work? I have no clue about bluegill and pumpkinseed, i have owned perch and had 4 in a 55 (thats column) and they were very happy. i wouldnt be too sure about the bullhead in a 55 because they seem to get a bit bigger and may need more surface area in the tank to be happy. some one here has probably kept all four together haha since this is a monsterfish website, i'd look at their aggression levels, i had 0 aggression in the tank once all four fish were introduced to each other. but i can imagine different species would have different agression for each other.
my last two cent MAKE SURE YOU CYCLE THE TANK FULLY. you dont wanna have to deal with problems later in the tanks life cycle because you added fish too quick
Also, would I need a heater? i would say not too needed but i heard that yellow perch grow faster in warm water. maybe they will be more active in warm water, even room temperature water will be good.
type of filter would be best? I have a filter that's rated for up to 100 gallons; would that work? I 've used one and two filters on the tank. it seemed to me that the perch were alot happier with just one filter because there wasnt as much current as when i had a fluval 304 and a hob filter. but with native fish there is alot of waste especially if your trying to pellet train them, im sure if you decided to get the bullhead there wouldnt be as much waste. its all personal opiniun. one filter has the potential to do a great filtering job, i'd say try one and if you need more filtering get another