Sea-Lab no 28 blocks seem to be making a comeback, what's your experience with them?

mizimmer90

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This is my first time hearing about these "magic" blocks but... wow what nonsense lol

Quote from Amazon "This is not a slow-dissolve or time-release product. It dissolves only to replace depleted elements." Which sounds not possible at all...
 

Randy Holmes-Farley

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This is my first time hearing about these "magic" blocks but... wow what nonsense lol

Quote from Amazon "This is not a slow-dissolve or time-release product. It dissolves only to replace depleted elements." Which sounds not possible at all...

It’s not actually impossible. Maybe it really has a mini ICP-MS and 16 little dosing pumps inside each block. lol
 

Randy Holmes-Farley

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I want to see someone throw one of these in a bucket of sea water and show that it never dissolves lol
Nice. Proof without any testing needed.
 

Randy Holmes-Farley

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FWIW, someone is testing the blocks in their tank here:

 

Looking back to your reefing roots: Did you start with Instant Ocean salt?

  • I started with Instant Ocean salt.

    Votes: 90 75.6%
  • I did not start with Instant Ocean salt, but I have used it at some point.

    Votes: 11 9.2%
  • I did not start with Instant Ocean salt and have not used it.

    Votes: 16 13.4%
  • Other.

    Votes: 2 1.7%
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