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Re: [APD] Tom Barr's Estimative Index

On Thu, 01 Dec 2005 15:18:34 -0000, S. Hieber <shieber at yahoo_com> wrote:

>> The UK magazine Practical Fishkeeping is currently
>> running a series of articles on planted tanks. They say
>> that for a healthy planted tank everything must 'in
>> balance', and they have just had a section on algae,
>> which says that excessive nitrate and phosphate cause
>> algae. I do wish some people would keep up... (shakes
>> head in mild anger at stupidity of magazine writers)
>> I think Tom probably is out of the mainstream, at least
>> here in the UK (Europe maybe?). Of course, it is the
>> 'right' stream...
> If you put in enough nitrate, you can get lots of algae. If
> you avoid nitrate, you'll get algae. I don't think anyone
> disagrees with that general point. How much of each of the
> nutrients does the Practical Fishkeeping series recommend
> for planted aquaria?
> I wonder jsut what the diffs, if any boil down to.
> sh

They seem to imply as little as possible/none. I read one answer to someone having algae problems; part of the answer was to reduce phosphate levels; the suggested maximum was 0.15ppm of phosphate, supposedly because even 1ppm of phosphate caused problems.
Basically they are of the 'nitrate and phosphate is evil' brigade; I'm sure they would probably recommend phosphate removers etc.
i.e. pre-PMDD day thinking? (please note also that I was only shaking my head in 'mild' anger :p )
What I meant was that when they said 'excessive' they would be talking in the >10ppm & >1ppm levels...

PS how much nitrate do you need to add to get algae? I'm sure Tom Barr said he once added 70ppm+ and got none...

Andrew McLeod
thefish at theabyssalplain_freeserve.co.uk

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