Philosophos

I'm glad someone is reading them

Ya, PMDD is a PO4 limiting system, which is something the hobby is moving on from. The concept that PO4 causes algae has been gunned down pretty well.

You're not going to find premixed PPS pro or EI. You might be able to get PMDD from dupla; I don't know much about the company though. I wasn't around for the dupla craze, just the ADA one.

Personally regardless of method, I like to keep my KH2PO4 dosing 12 hours apart from the micros. Other K+ based fertilizers will do just fine with it though.

You might find this link to be of some use in the future, it's one I think every hobbyist should have handy: http://www.aquarticles.com/articles/...son_Chart.html

-Philosophos