I'm a firm believer in HEAVY filtration......actually probably too much.......
My 55G has an Eheim 2128......a Hot Magnum....and a UV Sterilizer. There's also a large airpump driven sponge filter.
I'm lazy.......I probably service each filter every 2-3 months......and I can totally clean it knowing another 'cycled' filter is in place.
I average changing 2/3 of the water weekly.......sometimes more......
I would like a bigger tank for the Oscar....and that **** pleco.....
Someday!
It's too much fun watching the OScar swim around to have it cramped.......
Luckily......this little guy gives me a year or so to get a bigger tank.
It's doing fine.......holding it's own in a 29G with a Festivum, and a large Angelfish. The other big fish don't seemto mind it....
so far......but it does have a pvc 'retreat' the other fish can't get into. It was propped up on the striped Raphael cat this morning,,,,,,
My friends think I'm crazy with my **** Oscars.....but what else can always make you smile?
(That's legal!)