got my dry ferts

Depends on what method you subscribe to and probably more importantly how your tanks are setup. There are tons of threads on various forums on how you can dose. I've only gone the EI route although it was modified slightly (see below).

You can make stock solutions and I think there was a thread around here but I don't have it bookmarked...

Anyways, as for the potassium, some people find it unnecessary to dose K2SO4. Totally up to you depending on how your tanks are doing. Eventually I stopped but it didn't last long enough to come to any real conclusions.

I run all of that with EI dosing for my 46 gal with CO2.

Rather than a stock solution, I've just picked up several of those "seven days of the week" pill containers. I actually picked up enough of them off the local club auctions quick sale table such that i am able to take about 30 minutes and fill up 2.5 months worth of dosing.

So on "Monday" at feeding, I pop open the Monday tab and dump it in after feeding. Tank has been growing like gang busters since then.

You might want to be careful with stock solutions. At least don't mix the Plantex with the others as I think I have heard of stuff parcipitating out of solution when they are all mixed like that.

I believe it is the PO4 and iron that precipitate. Someone correct me if I am wrong.

I always added directly to the tank.

Check this sticky for some more intensive info on dosing:

http://www.aquariacentral.com/forum...o2-Fertilization-Algae-and-more-updated-10-10

whatever method you choose follow it to a T for several months. Then you will learn where you can skimp a bit. I currently use the most ghetto method of EI dosing known to man and it gets me by. It is such a terrible dosing method that I will never even tell anyone what it is.

Where did you get your dry fertilizer from?