Can't Find Formulex... what should i use?

I was wanting to buy Formulex to use during the seedlings first week or 2 since they will be growing in canna coco but i can't seem to find a place in the states that has formulex... i was able to find it online but all of the sellers are in the UK and the shipping charges are usually more than the price of the product itself lol. i know that canna start is supposed to be the same thing but it's hard to find info on that since it is still somewhat "new".
are there any other types of starter nutes meant for hydro or for coco grows besides formulex and canna start?
thanks in advance!

My local hydro store does a root enhancer, does pretty much the same as formulex, only difference is you cant use it afterwards as a vegging nutrient. Im sure that product (dont remember its name but it smells BAD) is commonly available.