Can anyone tell me what it is?

I don't know the name right off hand. I have a large,
unidentified jug of it that our landlord left us and
alot of the orchids I've bought here (Oahu) have them
in it. I took it in to the local nursery and had them
look at it and they told me it was an orchid fertilizer,
but I forget the name. Sorry

Tracey