After the swap...Ya’ll need to calibrate your refractometers!

Discussion in 'Reef Chemistry' started by Rostato, Mar 16, 2019.

  1. Rostato

    Rostato Supporting Member

    So I just finished acclimating and dipping all corals from the swap. All I can say is calibrate your refractometers.

    Some of you had salinity of like 1.019 and others up at 1.030

    I know things will live in these conditions, but I don’t know any coral keepers who will run there tanks like that on purpose.

    All my reading were taken with a freshly calibrate Milwaukee digital refractometer.

    Either way, it was a great swap. It was great seeing everyone and continuing to build relationships. It was also great to put more faces to names.

    Thanks to all you volunteered and very special thanks to Tim. Your beer is very good!
     
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  2. Coral reefer

    Coral reefer Past President

    Good to know. Maybe don’t put anyone on blast in this thread, but if I was off that far I’d appreciate being told via pm for sure.
     
    tankguy likes this.
  3. Rostato

    Rostato Supporting Member

    Yeah I don’t plan on naming people here. Just wanted people to know that their tanks are in need of a check up.

    I hope it didn’t come off stand-off ish. Just more of a PSA

    And you were not one of them. I got one of your torts
     
    tankguy likes this.
  4. Coral reefer

    Coral reefer Past President

    I think it’s a good and useful post, and I’m glad I can uncross my fingers now. I also think it can be helpful if people find any pests while dipping or during quarantine to let the person you got the frag from know.
     
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  5. Let me know if one of them was mine. I just calibrated last week, but I'd love a second check.
     
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  6. Rostato

    Rostato Supporting Member

    I don’t know if I got anything from you Bruce. I’ll have to look. I marked each container
     
  7. grizfyrfyter

    grizfyrfyter Guest

    There are so many problems with measuring salinity, I bet only 2 people out of 10 (using their own equipment) get the same salinity readings from the same tank.

    I've had several bottles of bad calibration solution.

    I mix my own calibration solution now and compare it to my friends digital refractometer.

    If mine was off, let me know.
     
  8. Rostato

    Rostato Supporting Member

    Agreed. That’s why I like the Milwaukee digital. To calibrate it you just zero it out with distilled water
     
  9. Rostato

    Rostato Supporting Member

    I’ll notify the people who were at the highs and lows. If you don’t here from me by the end of the day you are good.

    I know the Milwaukee is sometimes off by .001 every now and again, so I’ll just let people know who were way off.
     
    Last edited: Mar 17, 2019
  10. Wait -- everyone doesn't use the Milwaukee? How come?
     
  11. At one of our meet-ups we should have a "secret santa" water testing thing. We all bring our test kits and then pull two or three peoples names and test their water. We'd see the variance from different testers and then could compare to our own results. :)
     
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  12. tankguy

    tankguy Supporting Member

    looks like i dodged a bullet. I try very hard to keep things in check
     
  13. Rostato

    Rostato Supporting Member

    Maybe...I didn’t get anything from you.

    I definitely suggest that everyone check there’s. I’ve seen calibration fluid off by more than .004!
     
  14. tankguy

    tankguy Supporting Member

    Gotcha , I saw 2 up there that I brought
     
  15. Rostato

    Rostato Supporting Member

    Well, maybe. I do have 2 that didn’t have forum names on them.

    I got a strawberry shortcake and a slimball that had no names or lighting attached.
     
  16. tankguy

    tankguy Supporting Member

    nope mine were all labled
     
  17. JVU

    JVU BOD

    Good reminder... I’m going to double check my calibration today.

    But the more amazing thing to me is that you check the salinity of the water of every frag? For me it wouldn’t change my acclimation process if they were high or low, that’s the point of acclimation. Same logic for why I don’t check all the chemistry parameters of the water of every frag.
     
    tankguy likes this.
  18. Rostato

    Rostato Supporting Member


    Yes I do. If I get frags all are only about .002 difference I throw them all in one big container acclimate at the same time. I had to do 3 separate acclamations for this batch.

    Plus the Milwaukee takes 2 seconds to take a reading.
     
  19. RandyC

    RandyC Supporting Member

    My dirty little secret. I don't even acclimate swap frags anymore, I throw all the frags in the same bag with all water, then temp acclimate, then into the dip with my tank water (without frag plugs/rock of course).

    Natural selection! Only the tough survives. Honestly though, started doing this a 2-3 swaps ago and haven't had a loss yet. Your mileage may vary.
     
    Last edited: Mar 17, 2019
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  20. I do the same thing unless it's a valuable or touchy species. A nice long temp acclimation and then a nice dip. No other way to do it when you come home with 10 corals in 10 different types of water. Truth is corals are pretty hardy and it's usually not acclimation that kills them. Better just to bring them to temp and get them in clean water.
     

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