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Re: water changes
Steve from breedofish at aol_com has raised an interesting question that deserves some
discussion. I would have to agree that water in a well planted tank probably does not have
to be changed as frequently as that in a tank relying only on a biological filter for cycling of
organics. However, it has been my understanding from reading many postings on this list
that aquatic plants utilize ammonia as their primary N source, not nitrate. Consequently,
over a few weeks time the nitrates may still build up in concnetration. You would
probably have to severly neglect your plant tank for many weeks to reach a toxic level of
nitrates, but it's better to be safe, right? Anyway, just my two cents worth.
Robb
Robb D. VanPutte
Dept. of Biology
Texas A&M University