Alright...I have narrowed my decision down to two, well three filters...i have a 55 gallon that i plan on planting some java moss, driftwood, a large number of cardinal tetras...i am looking at 3 filters, the marineland emperor 400, the tetratec pf300 and pf 500...i can get the emperor for about $45, and the pf300 about $35 and 500 about $50 or so...i don't know which...any opinions will be taken. if get a tetratec, i will most likely get the heater, for about $20 extra, but that's really of no concern, just the filters.thanks.
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