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There is a ceramic biological filtration that is either hard to get in the US and is very expensive. Someone on Marsh is able to get it on occasion and will buy in bulk then divvy out smaller portions to members. First, I am trying to remember the name of the product and second, I am wondering...
I am considering up grading my 60" 6 bulb to this with 8 bulbs. The price is basically what i would pay for 3 radion G4! Which option would you choose?
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