How long is a "Freshwater" Moray Eel freshwater?

I have a "Freshwater" snowflake moray (around 8-10 inches) in my 20 long brackish tank. How long will I be able to keep him in there before he has to go salt?

well actually i'm saving for a 75 gallon.

any chance of a picture of your snowflake moray ?

I'm working on those. I need a camera for that. Once I have one, I'll post one.

There is no such thing as a freshwater moray eel. Morays are very hardy fish and some people acclimate them to brackish or freshwater to sell them quicker.

This I am aware of, and was aware when I bought it. which is why, when describing the Eel, I put quotations around the Freshwater emphises. I know that certain species of Moray Eels (Mainly the common dwarf snowflake eel) are born in freshwater, and then go to salt water (Such as the species in which I have). so, I was just curious as to how long they stayed in freshwater before moving out to sea.

technically there is but i won't go into that. I have seen a few but i guess their both just like some puffers.