I've made a mead with half honey, half agave. If you have 4.5 lbs of Agave nector, you will need 4.5 lbs of mild tasting honey. Start a 3 gallon batch of mead using the honey, energizer/nutrient and only about 1.5 gallons of water, all in a 3 gallon fermentor. Once the initial fermentation is done, loosen the agave nectar with 2 quarts of very warm water, and add it to the carboy. You can give it a good stir if you want. Use a higher attenuating yeast. Mine tastes great.
the Nurse wants to know
Date Mead, Oatmeal Cookie Braggot, Fox in Sox Gruit
Hard lemonade, Cyser, Golden Plum Mead
Agave Mead, Chocolate/Cinnamon Mead, Heather mead,
Heather Ale, Emerald Honey Kolsch, Hobgoblin clone, Terror of the Ewes Oatmeal Stout,
Kilt liftin' Wee Heavy, Soggy Doggy English Brown Ale, Saaz/Perle Mead, Cinnamon Mead, Shiraz,
Sauvignon Blanc, white merlot, Elderberry Mead, Vanilla Mead