i have a 90 gallon tank with 2 Tiger Oscars and im upgrading to the fx5 and wanna add a UV sterilizer becouse of the bright light the room gets and alge growth, some say run a UV some say dont. Never the less im going to get a coralife turbo twist and was wondering should i hook it up to run with the fx5 or should i run the turbo twist off of a power head. What watt UV should i run if i go with the fluval and what watt and pump gph should i go with if i use a powehead?