As for food, Hikari is the top of the line. I use Whisper "hang-on-back" filters and always go at least double what they recommend. I change water 2x a month, half of the water each time. I use a magnetic algae scraper for in-between-time algae removal. I don't heat my gf tank, but the temps in the room never go below 70 degrees; they like cooler water as opposed to a tropical tank.
"Magnum" canister filters are nice, but they take some education Mark has one in his 125-g Oscar tank. I took it apart once to clean and was immediately drenched in water! I figured it out eventually.. they work great though, just read the instructions unlike I did.