Question about Peters ferts

Yeah, Growalot, You say there great, with N-P-K ratio of 20-20-20 I'd say they have all minerials and are good for any problems??
I may purchase a five pound bag, and I need to know, say I would, in about a week, or week1/2 Id get it, could I use it right away? I belive my plants are suffering from lack of calcium.
Please provide the right dosage on 8-12" plants growing about 4 1\2 weeks.
Ive mixed up some Seabird Guano(that I used on two of them), and also tried a little bit of Hydrogen Peroxide, (30ml per gal) on one *watered about 3days ago).. still show the same disorder Ive researched on, (edges are losing color, overgrow.com showed calcium, take a look.. http://www.overgrow.com/growfaq/1382

I've used the blue Peter's 20-20-20 powders before, but only for vegetative 18/6 or 24/0 light periods.... When in mid-late vegetative cycle you can use heavy dosages of the 20-20-20, Peter's recommends a tablespoon for every gallon of water.

When u flower you want something with more phosphorus and less nitrogen, like 2-5-3 or if you were using Peter's 20-20-20 to veg for the first 4 weeks when u start to flower switch to a 10-30-30 ratio fertilizer!! Otherwise your buds will have more leafy material than actual buds!

I've since switched to Fox Farms organic and Advanced Nutrients organic. I would always recommend organic over chemical ferts.

Have fun and good luck