Adding HOB skimmer question ..

Discussion in 'New to Saltwater & Reef Aquariums? Post Here' started by Ryan Rioux, Feb 20, 2017.

  1. Ryan Rioux

    Ryan Rioux Well-Known Member

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    Hello , I've had my aquamaxx skimmer off for a couple weeks now , and I've finally added livestock back to my DT after a 88 day fallow period . When adding my hob skimmer back on the tank , it states to add tank water into the skimmer and begin running . When I first added the skimmer 6 months ago I remember adding RO water back to tank after filling skimmer which lowered the salinity level crazily ! The tank is a 20 long, so I want to be sure It's done properly so I don't affect salinity level again. should it be saltwater added back to tank to maintain the 1.025 level?!
     

  2. MRRBW

    MRRBW Active Member Partner Member 2019

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    Yup. Unless you are looking to dilute/drop the salinity, you need to fill it with salt water at the same salinity as your tank.
     
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  3. cloak

    cloak Valuable Member R2R Supporter R2R Excellence Award

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    Yeah, saltwater is what you should add for the displacement.
     
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  4. Ryan Rioux

    Ryan Rioux Well-Known Member

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    Thank you
     
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