Originally Posted by IwantToScubaInMyTank
Any information on calibrating test kits? Trying alternatives to EI, the tank is med light and not Co2 enriched. Really just trying to learn how to read the plants but it's nice to have a solid test that I could fall back on but that is seeming intangible. And I understand how extra fertilizers and elements in the water are not necessarily harmful but really don't have time for the intense pruning and weekly water changes that comes hand in hand with that method..
That''s why I suggest using less, not more light, all plant growth begins with light, so everything like CO2 and ferts downstream from there is much easier to manage.
This is how you can control growth rates much much easier than limiting ferts. Light is 100X more stable, make that 1000X more stable
Then CO2 demand is reduced, this is the one thing that kills and stresses fish more than any other. So both ferts and CO2 are easier.
Growth does NOT start with N and P........it starts with light.
I've long noticed many trying to poo poo EI use the weedy growth as a weak sorry excuse to NOT suggest or use EI, however, these people have a poor understanding of the very basics about how a plant grows. I suppose they where not awake in 7 th grade Science class when they had to learn the photosynthesis equation??
We can control growth rates much easier with light and with CO2.
We may also chose plants that do not require trimming as much, or have innate slow growth.
These are very basic horticultural skills that many seem not to possess, then tell other folks their misinformation........ahh, and a myth is born on the internet.
I would suggest you read Tropica's article on light and CO2:
It is far more informative and helpful than most articles you will find.