Seaweed Fertilizer

There are some extrememly fast growing seaweeds (some types of seaweed growing up to 1 foot per day) And of course this in our garden would supply some serious fuel to our growing plants. I do not know which seaweeds are which. (I hope to still research this!)
But: The sweet corn organics uses the 'fastest in the world'. (see tomato fertilizer description- It is possible that it may also contain some of this as one of its ingredients)

MegaSea - Seaweed Powder
10.7 oz.
Price: $19.98
MegaSea seaweed powder contains all the beneficial trace elements necessary for overall plant health. This product is the perfect soil amendment for addressing soil deficiencies. It will also help create an environment in the soil that will help plants survive frost and drought conditions, as well as prevent insect and disease problems. It is also a must for fruit tree production in frost-proned areas. By amending the soil, it actually helps raise sugar levels in the buds that will help the tree essentially produce its own antifreeze and allow for fruit even in late-frost situations. Combined with MegaFish liquid fish and either MegaMator/MegaPepe/MegaVeggie, it makes a great 100% organic program for amending soil for a more bountiful harvest. 10.7 oz. Makes 70 gallons of liquid product.

This is sourced from the part of the world where the fastest is grown - I do not know if it is the same or how it compares. however the rest of the benefits are present.
Kelp Gran ASCO Ani/Fert (Blue Label)
from Thorvin
Price: $56.05
Size: 50 lbs.
INGREDIENTS: Certified Organic Dried Marine Algae Sea Vegetation, Species Ascophylum Nodosum, a product if Iceland.