Nitrates

S

swordtail

AC Members
Feb 9, 2005
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Looking for fertilizer info for my plants which started out where I would harvest tons of green, now very little growth. My question is about nitrates which are recommended for addition in the form of (KNO3), such as Spectracide Stump Remover, Salt Petre, Green Light Stump Remover, Grant's Stump Remover etc etc, HOWEVER, isn't this what I am doing all these water changes for, to REMOVE the nitrates at the end of the cycle? Now I am supposed to ADD them? Maybe I should just do less water changes? I am confused.
Phil
 
Adding the KNO3: makes sure you do not run out of NO3 or K and water changes prevent them from accumulating too high. So you end up with a good range for plant growth.

Or you can use a test kit, calibrate the poor junky cheapo aquarium hobby test kits which are notoriously bad for NO3..........in particular.

Most do water changes anyways to clean etc anyway.


Regards,
Tom Barr
 
The process of which this is done is simple. Each day fertilizers are dosed, and the nutrients are absorbed by the plants. With this method being estimative, we can dose fertilizers according to general guidelines suited for our particular setup (see below). At the end of the week, one performs a 50% water change to ‘reset’ the nutrient load in the entire system. And then the entire dosing schedule is repeated.

http://www.aquaticplantcentral.com/...zing/15225-estimative-index-dosing-guide.html
 
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