Avari - who or what is it?

30 some years ago, just after leaving the US Army active duty as a medic, I started an aquarium servicing and installation business. Think "Tanked". A business has to have a name, so I went to the library. Yes, pre-internet. No smart phones. So I found in the Dewy Decimal system... Andvari, the Nordic water sprite (spirit) who had a magic ring which brought him great fortune, could turn into a fish and was tricked by Lokii and lost his ring.

Maybe not the best name, but Andvari just took hold. I found the two consonants together just didn't work in the English language, so I shortened it to Avari. Who knew that in todays world there would be so much info on this name. Not what I intended. But, it works and here we are!