"but i agree, i think EI is the best method seems to make sense, as like you say, and how i like to think about the light is the catalyst, light is what triggers the demand so even if you have more ferts in the tank than the plants can draw in the plant will only draw an amount that the light will let it. now this goes back to my original reason for posting this those excess ferts what happens to them? just sit there? or get used elsewhere? in my eye's from what i can think the only thing those ferts are now going to do is create algae, and feed the algae? but people keep telling me no that is not correct but hey no idea "
Ok EI states that you should have one day off from dosing, this gives the plants a good opportunity to absorb up any excess nutrients.
EI also states a 50% weekly water change, normally performed day after the day off from ferts. This resets the nutrients in the water that may still be left in the water colume. Then you simply start again. Its so easy, hassel free and worry free.
Remember nutrients dont cause algae, even extreme excess nutrients.
Its when your water column lacks a macro that you get algae.
OR when you have fluctuating conditions such as co2.
"am i right in thinking, that if a plant is growing, and say on day one it has 2 leaf's it will take in X amount of fert's on that day it grew a new leaf because of the ferts and all, am i right in saying that on day two, now it has 3 leaf's it will need XX amount of ferts? so the fact i was dosing 25ml to start with when i get more plants i upped it to 50ml and i have been adding 50ml ever since, maybe i need to increase that now to 75ml so i don't run out of ferts when the plants grow like they are."
Remember EI is all about having more than enough nutrients in the waters column to suit all your plants needs no matter how much they need.
Whether they need x amount, xx amount or xxx amount for 2, 3, 4, 5, 6 leafs.
It is basically overdosing ferts.
Dont ask me how much to dose your neutro as iv never EI dosed with store mixed ferts.
I mix all my own with dry salts and recommend you do the same.
Much more effective and cost SOOOOO much less in the long run
http
/www.aquariumplantfood.co.uk/fertilisers/dry-chemicals/starter-kits/ei-starter-kit.html
Edit: A day off from dosing every week. Sorry I didnt state that did I lol