EI method questions

[Danielm]

I have never really got my head around ferts dosing. Early on someone said to try the EI method.

Currently doing about a 75% water change weekly.

I am using TNC complete as I want to make this as simple as possible. I found on their website some information that dosing 3x the recommended amount is approximately EI levels (this means 75ml per week for me)

This all makes sense but question is whether I should do this all in one go, or ‘drip in’ using my doser. I have a good Kamoer doser that lets me set virtually any programme.

Thanks in advance

 

[oscarlloydjohn]

Most of us use who use EI dose manually, so doing it all in one go shouldn't be a problem. You will be dosing it daily, right?

I don't see harm in dripping it either, but it definitely isn't necessary. Just do whatever works for you.

 

[HiNtZ]

Either or I'd say. It really makes no difference.

Personally when I ran a doser I had it split 1 daily dose into 2 three hour sections, then I got annoyed at always being there when it was pumping in so went back to dosing at lights on only. Then when the doser gave up the ghost I went to dry dosing (weighed) which I liked as it was easy enough still but scared anyone I'd ask to mind the tank while I'm away & they'd be reluctant to oblige.

Now I've moved to PPS pro and mix up small but accurate quantities (about 100ml where I dose 5ml a day of each) of liquid fertiliser dosed with syringes manually just before lights on. I prep the syringes before I go to bed, then squirt them into the tank in the morning.

I'm sure I could spare you any salt you need to properly test EI or PPS. If you want a little batch I can bag enough up for a month's worth. That would be

KNO3 (potassium nitrate)
KH2PO4 (potassium phosphate)
Chelated trace mix (8.2% Fe)
K2SO4 (potassium sulfate - you might not need it)

Let me know.