[APD] Re: re planted tank calculations

[Clint Brearley <clint_brearley at telstra_com>]

Just letting you know that I've updated some of the info on my website. It now has up-to-date calculations for the amount of ferts I'm adding (adding a bit more now) plus I've outline the "Tom Barr method" on there too, which I might give a go some day.

Cheers

Clint

----- Original Message -----
From: aquatic-plants-request at actwin_com
Date: Friday, March 5, 2004 0:46 am
Subject: Aquatic-Plants Digest, Vol 7, Issue 11

> hi clint ... 
> 
> thanks for your prev email with all its tips ... it has taken me 
> all this time to track down all the various ïngredients" for the 
> frets as per your web page ! ....the potasssium nitrate and 
> phosphate were the two toughest ones to get ... 
> 
> i followed some of the links that you kindly recommended ... but 
> the mail order hydrophonic houses were both out of stock and 
> couldn't tell me when they would next get some in ...i felt very 
> discouraged when one said it could be 6 or more weeks before they 
> restock .. after many phone calls i found one place here in sydney 
> that had them both in stock... and picked them up today 
> (sunday).....of course it was right on the other side of town ... 
> about 1 hour 15 min drive each way!.... hope these plants REALLY 
> appreciate all these ferts :) 
> 
> i couldn't find purex at any of the local pool shops ... but did 
> get what they assured me was exactly the same thing ... it's in a 
> granular form .... he said thats the only way it comes ...is that ok?
> 
> so now all i need to do is try to work out how much to put in ... 
> my tank is 120 litres .. and i have been doing anywhere from a 25% 
> to a 50% water change each week ...... just dep on how i feel and 
> how late at nite it is!  ..... if you think that a 50% change is 
> recommended ...  and will help the plants better ... then i will 
> do that as my regular practice ....i would appreciate your advice 
> on this issue if you are able ...
> 
> i have read your page on ferts about a zillion times ... in fact, 
> its my new "home page " that  my browser opens to ... 
> 
> i am however still having trouble understanding a few things ... 
> hence my email to you again ... sorry to be so slow ... but altho 
> i think that i can follow most of the calcs that you have set out 
> ... i still don't quite understand a few things .... 
> 
> ie why 3.5 tbs of pot nitrate in 500 ml ? .... why 2 tsp of pot 
> phosphate in 500 ml ?.... etc ...
> 
> have these concentrations been chosen for a specific reason? 
> ....and why 500 ml ? ...
> 
> that seems to be a very large amount of stock solution to have on 
> hand when you are dosing 1 - 2 ml per day ... ie it's about 500 - 
> 250 days worth of stock .. 
> 
> will it stay fresh that long in a solution? ... why not make it up 
> in smaller batches ... ie .... about 1 months supply? 
> 
> how do you know / estimate how much your plants will consume in a 
> day .... i seem to have missed something or some step here 
> somewhere ? .....
> 
> can you advise me how i should make up my stock solution for a 
> 120l tank .... 
> 
> 120/168 = 71.4% ... do i just alter all the concentrations by this 
> amount? ... i am really keen to start dosing these ferts .... i 
> hope that this email is not too much of an imposition ... but i am 
> feeling a bit lost and would really appreciater your advice on 
> this matter
> 
> regards
> rod weiland
> 
> ps do you know of any nsw based fish / planted tank / general 
> aquaria / buy and sell etc forums ... i have done searches but 
> always seem to come up with melb and qld!
> 
> regards 
> me

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