Salinity - What to Trust?

HB AL

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I use a refractometer that i used to see what my 35+ year old swing arm read at the same time. The swing arm was off from the refractometer so I made a mark on the swing arm where it was at after just checking with the refractometer at 1.026.
 

Being sticky and staying connected: Have you used any reef-safe glue?

  • I have used reef safe glue.

    Votes: 35 85.4%
  • I haven’t used reef safe glue, but plan to in the future.

    Votes: 1 2.4%
  • I have no interest in using reef safe glue.

    Votes: 2 4.9%
  • Other.

    Votes: 3 7.3%
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