The Puffer Forum

http://badmanstropicalfish.com/brackish/brackish.html

Going off of the details in that page, would an estuary type tank, or mangrove type tank, or river type tank be best for a GSP? The tank is a 30, it is overfiltered, and has an underpowered powerhead on one side, but not very strong. It is an aquaclear 301.

Well, that's tough, especially considering they go full marine as adults, which doesn't fit any of those profiles.

No matter what you choose, they do like a whole lot of current though, as long as they have resting places to get out of it.