I'm fond of all-natural, and high phosphorus bat guanos during flowering. But organic growing is also just a preference of mine, and I tend to stick to it pretty religiously.

There are tons of truly great products on the market, organic and chemical, but you won't find many of them at your local hardware store. If there are any hydro shops in your area, I'd take a look at the products they carry. And if there's not one that you can visit, you'll find plenty of sources on the internet. I've ordered several products from Discount-Hydroponics.com, and I've been very pleased with their efficiency and customer service. There are plenty of other companies out there with fantastic reviews, and probably equally as good service. You just have to look! :jointsmile:

Hope that helps.