How to Lower Salinity without Hurting my fish

Chris H Reef

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Hey All,

I currently have a 75 gallon tank that I set up recently. I currently just have 2 juvenile clowns in there.

My salinity is a little high at 1.028. I have a refractometer to check salinity. It doesn't seem to be bothering the clowns but I'd like to get it lowered to around 1.025 since I plan on adding more fish and trying my luck with some corals in the next few weeks (I know my tank is new but I want to try out a couple of cheap coral frags).

How should I go about lowering my salinity? If I pulled a few gallons out of it and replaced with fresh RODI water to get down to 1.025 would that be ok? Would changing it rapidly have an adverse effect on my fish?
 

HOW MUCH DOES A FISH’S FEEDING REQUIREMENTS AFFECT YOUR STOCKING DECISIONS?

  • A lot! - I avoid fish that require frequent or specialized feeding

    Votes: 19 33.3%
  • Quite a bit, but an automatic feeder can change my answer

    Votes: 8 14.0%
  • It depends on whether my nutrient export can handle it

    Votes: 8 14.0%
  • It depends on how badly I want the fish

    Votes: 12 21.1%
  • Not much. I’m willing to adjust my routine

    Votes: 9 15.8%
  • Not at all. Feeding demands don’t limit my stocking choices

    Votes: 9 15.8%
  • I usually learn about the demanding feeding schedule after buying the fish!

    Votes: 2 3.5%
  • I haven’t really considered this before

    Votes: 4 7.0%
  • Something else (see my comments in the thread)

    Votes: 2 3.5%
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