Hmm, my two hundred gallon tank runs well with a penguin one, it's usually designed for the 55 gallon, but since I bought the one with the bio wheel, I have two, and it's pretty good at working hard to keep the water clear. I have a few small air pumps that pump air through the air stone diffuser, and usually it's alright to keep the fishes swimmingly.
Also, aquarium salt, the small freshwater one, it's really good at helping my fishes breath easily.
I have some Cabomba Caroliniana, and thats actually a cabomba, in an easier term, and it usually grows fast, helping my fishes eat some of it, and I have wisteria, amazon sword, bacopa, java fern, money wort, and other plants

they are in all of my tanks, and in my 350 gallon tank, I have 10 of each so then it can populate my tank very fast

I also bought some java moss, so then my fishes can eat them.. I have lots of gouramis though
