Hello All, I am getting a new (used) 100 Gallon tank that is replacing my 55 Gallon tank. The 100 Gallon tank is coming with a Fluval 405 canister filter, is this good enough for the 100 Gallon tank? or should I used the filter for the 55 Gallon (AquaTop CF-400UV Canister Filter with UV9W Sterilizer) in conjunction with Fluval 405 Canister filter? However, I'm not keen on having two filters run in the 100 Gallon tank. Another thought is that I get entirely new filter for the 100 Gallon tank which would be AquaTop CF-500UV Canister Filter with UV9W Sterilizer if the filter that comes with the tank is not good enough. thank you.