RyanS Posted November 7, 2018 Share Posted November 7, 2018 I recently got a figure 8 puffer that’s bouncing around my freshwater tank, I know they’re born there and eventually move to brackish. I’ve also heard some even adapt and move out to full saltwater. I want to safely increase the water to that point so that I can add him into my 55 gallon saltwater tank. Anyone know the safest way I could do this? I use instant ocean which is 1/2 cup per gallon. What would be a safe amount to mix with water changes, and how often should I increase the SG? Quote Link to comment Share on other sites More sharing options...
Timfish Posted November 8, 2018 Share Posted November 8, 2018 My guess, since salinity of brackish water is going to be variable depending on rainfall and tides a 25% change in salinity over a 12 hour period wouldn't be a problem. Quote Link to comment Share on other sites More sharing options...
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