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Posted by Billy on May 3, 2005, 12:23 am
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>
> For a FO tank they work very well, for a reef tank, they are not
> good, because they work very well. The wet/dry filter is a great
> filter for part of the nitrogen cycle, it handles the ammonia to
> nitrite to nitrate very well, but it quits right there. In a FO
> tank, the nitrate is not to bad most fish can handle pretty hight
> levels of nitrate. But in a reef tank, nitrate is algae food, and
> is an irratent to many invertabrates. So you want a low nitrate
> level, if you use a live sand bed and live rock the system will not
> only convert the ammonia to nitrite to nitrate, but it will also in
> the areas of low oxygen in the rocks and lower sand bed levels
> convert the nitrate into nitrogen gass, so you have much lower
> nitrate level in the aquarium, and less algea growth.
>
Fabulous explanation. I've seen them work well in reef systems, but
they *can* indeed cause higher than desired nitrate levels.
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> FO and reef systems ? Seems to be a lot of conflicting information
> about them and I'm not sure whether to invest or not.