I'm setting up a 5x2x2' planted tank for discus. Bio-load not too high - 6 x 6" blue diamond, 40 or so rummynose and some Corydorus. I'm trying to decide on filtration. First decision is do I have one big filter i.e. Fluval FX5, Eheim 2080 Pro 3 or Eheim Classic 2260. Or two smaller filters i.e. Eheim 2028 Pro 2, Eheim Classic 2217, Rena XP4 or TetraTec 1200. I like the simplicity aspect of one big filter and less hardware in the tank. But I also like the backup factor and staggered maintenance of running two smaller filters. What would you do, and please don't say a sump...? Cost isn't a major consideration.