Originally Posted by magicmagni
Yeah I've been doing EI for the a year now and it works good. It's a good starting point. If you want to "mess" with it I would suggest you only change one thing at a time and give it a week or two- possibly longer to see results. Log the results so that you can look back on them. Sometimes limiting certain elements can make certain plants look better, but on the other hand it can make others look worse. I guess it really depends on the tank and lighting. A little trial and error though and you can tailor it to suit what you're after.
This is a part of the EI folks miss often.
You can test without a test kit by adding less/more of one nutrients at a time.(generally I suggest 3 weeks per change).
Rather than focusing on the test kits, ppm etc, you see plant response.
Ultimately that is what our real concern
This takes some time to test the up/down range of each nutrient, but basically you have CO2(always high!!! or else non CO2)--> no need top monket with that except make sure you have enough(30ppm or so), NO3, PO4, K, Ca, Mg, SO4(don't bother), Traces.
There are others but these are the one's that make a significant difference.
So that's only 3-6 things to play with and EI will give you a starting point.
Sinmply add more till it's unreasonable and add less less till you see a negative response from the plants and then bump back up from there.
I suppose many might say this PPS without a test kit.
It does individualize the tank's needs and allows you to do that with a very simple method and no test kits except for good CO2.
Why use test kits, calibration of them, making all sorts of precise measurements when ther ultimate goal is a nice planted tank.
Heck, cut to the chase and do that.
Then you can see how the plants respond without all that work.
It'll take less time and effort to do that also.
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