Quote:
Originally Posted by unirdna
That was a great post, Jason!
If you start your own thread re: this experiement (and I strongly suggest you do), please PM me so I don't miss it. I have dropped a tank from 15 to 5, and plan to maintain it there and see how things go. IMO, 5 is still a loooong way away from "less than 1 mg/L".
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At the end of the testing, I intend to do a more formal writeup with some pictures. I will certainly keep you posted.
I think the key is lower co2. In a lot of ways it was frustrating.....very slow growth and the unknown....i felt like a newb again.
I think we all agree that plants need NPK....or they wouldnt be called macros
I think what is confusing is that amano believes in substrate ferts more then column dosing. AS has a pretty good amount of macros in it, so i would think that 1ppm of N is really pretty close to what he has rolling. Also, his co2 is very low by american standards. And his lighting is lower as well. I know everyone will say "What about those 150MH pendants!!"......well if we look, they are all over 12" away from the water surface
In the end I will attempt to find a happy medium....somewhere around 5-10ppm of N and 15ppm of co2. I think amano is still afraid of P, and it has been proven by others and driven home by Tom that P does not cause all out algae like previously believed. I think that amano has some GSA issues because he is afraid of P. I would like to dose a little more then amano and way less then the current US standard.
Betowess - I am using Hagen kits. I have some lamotte kits that I am calibrating them with(thanks Erin) and a triple beam scale to be balls on with my dosing (assuming the fertilator is correct).
And you are right about the KH thing....but then again....nothing is accurate in this ridiculous hobby.
So as you say, i am just estimating.
There is a small cult of us that are moving the pendulum back towards lower levels of nutrients. Its easier to control IME.
jB