Hi Rose!Welcome to our forum and we do hope that you will like it here. While you have a project that is unusual I am sure you will find some who will want to discuss it on the forum with you in both the Freshwater and Saltwater areas of the forum.
I would do a lot of discussing this with some of the really fully experienced and long time fish keepers before trying the introductions of fish into unnatural habitats and see what they say.
Thank you for joining and we look forward to getting to know you better.
in the STF tank (salt to fresh) which is currently on part 4/50 on the way to "Saltqulibrium" contains:How about giving us a list of fish you are trying to do this with
I'm aiming for something like this...What type of salt are you useing and how are you checking the salinity? I will bet that your inverts will be dead before you get to the point you are trying to get to, most all puffers can handle brackish water so that one will probably make it, oscars have been known to handle slight brackish water and gold fish like some salt in there water so they stand a chance. I would really like to know what salt level you are shooting for and how you are checking it and the salt you are useing.