Acclimate eel from 1.020 to 1.025, how long?

[Delphinus]

I need to move an eel from one tank to another, one tank is at 1.020 (coming up from a hyposalinity attempt) and the other the more standard 1.025.

Can the eel be moved over to the new tank at this time using a protracted drip acclimation? I seem to recall that lowering salinity can be done quickly (over hours) but raising from hypo needs to be over several days .. but I think this is when you're talking about larger differences like 1.012 to 1.025.

Species is a golden dwarf, if it makes a difference what species he is.

I'm thinking it might be OK just to drip him over an hour or so? Don't eels sometimes swim into rivers and then back out to the ocean? Maybe not golden dwarf's though.