1. Does this filter replace my existing water filtration (Whisper HOB type) or is it "in addition to?"
2. What maintenance does a diatom filter require?
3. Tetra makes a "Diatomagic" filter that is cheaper than other makes - is it some kind of gimmick or whatnot?
4. What brand do you use, if you use one?
2. What maintenance does a diatom filter require?
3. Tetra makes a "Diatomagic" filter that is cheaper than other makes - is it some kind of gimmick or whatnot?
4. What brand do you use, if you use one?