Are there green spotted puffer fish that can be kept in freshwater for a lifetime?

[Pufferabc]

Hi all,
I bought a puffer fish called a complete freshwater green puffer.
When I bought it, it was probably a juvenile and had already been kept in a freshwater aquarium for 3 months at the store.
Now, it has been 4 months since I bought this pufferfish at the store and kept it in a freshwater aquarium.
The back is a little black, but it is swimming around fine.
Is it OK to continue to keep it in freshwater?
I heard that green pufferfish are kept in brackish water, so I am a little worried.
However, I have heard that this pufferfish can be kept in freshwater all its life.

[Pufferpunk]

There is a Congo spotted puffer that lives in FW.
https://www.pufferfishenthusiastsworldw ... choutedeni

[Pufferabc]

Thank you for your reply.
I also have a Schoutedeni. cute.
If anything, I'd like information on green spotted puffer fish, but it's still difficult.

[Pufferpunk]

library/puffers-in-focus/an-introductio ... d-puffers/