For starters, the addon I used is Auctionator.
This method uses the same general principle which you see in several of my other entries: using Auctioneer's "AH" button to see if the price of the base materials is less than the price of the finished product for an item with a decent demand. This is the case with the Elixir of Giant Growth.
The required Materials are as follows:
- 1 Deviate Fish
- 1 Earthroot
Each set of those 2 items creates 1 Elixir of Giant Growth. On my server, the price of the Deviate Fish was 4g50s per and the price of Earthroot was 20s30c. This brings the total cost of making one Elixir to 4g70s30c. Subtracting that from the current Auction House price of 7g84s77c, we have a Net Profit of 3g14s47c per Elixir. Seeing as I created 5 Elixirs (though I had all materials to make 20 other than the vials to create them), the profit for this transaction comes to 15g72s35c.
Now, while that number is not very amazing in-and-of-itself, the benefit of this process is that it can be done at very low levels seeing as it only requires Alchemy (90) to craft. Itt does vary from server-to-server. I've spoken with people who had a 10-15g+ profit margin on their Elixirs using the same method while others have a loss by doing the exact same thing. It's one of those methods which can vary in terms of results, but the only way to find out is to go out and check!
I hope this write-up has helped to add clarification; and, as always, good luck!