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Re: FE, KNO3
- To: <Aquatic-Plants at actwin_com>
- Subject: Re: FE, KNO3
- From: Thomas Barr <tcbiii at earthlink_net>
- Date: Thu, 27 Mar 2003 11:50:37 -0500
- In-reply-to: <200303271140.h2RBeMU1026913 at otter_actwin.com>
- User-agent: Microsoft-Outlook-Express-Macintosh-Edition/5.02.2022
> Date: Wed, 26 Mar 2003 09:11:49 -0600
> From: "Kevin Sheller" <kevmo at arenafan_com>
> Subject: Re: iron levels & other elements
> The 5mL per 20 gallon, 3x a week on a very high light tank is a much higher
> dosage than I expected it to be.
Welcome to the club:)
> This makes me wonder, how can I determine if I am fertilizing enough
> potassium and nitrate?
Well you can test for the NO3 at least. But a good test kit for useful info
See the Dallas Fort Worth plant club's web site. Look for articles and the
"Estimative Index". Or search here etc.
> Do you have a similar formula? I have the dry
> elements Potassium Sulfate and Potassium Nitrate that I ordered from a
> hydroponics place.
I add about 1/2 teaspoon of KNO3 3x a week and 1 teaspoon of K2SO4 after a
50% weekly water change. I have a good load of critters.
> And, would you consider 192 watts of light on a 75g tank (2.56 watts per
> gallon) very high light?
Sort of, not really high but moderate. PC light is pretty intense.
> Thanks a million,