Blue Knuckles molting

jrock flimflam

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Howdy all,
Bought two Blue Knuckle Crabs from Petco to control some algae that started during my breakin period. Both have been pigging out and after 7 days I thought one of them had crawled out of his shell and got half eaten by a fish. It was sad.
Three days later spouse calls me at working thinking a new something was trying to move in to the shell. I get home and find a second half crab on the bottom but now I have two very alive crabs eating away.
I guess they both molted.
Within 10 days in my tank is this a good thing, bad thing, or normal thing?
They seem happy.
 
...and last readings were:
Salinity 1.024
Ph 7.9
Amonia 0.25
Nitrite 0.0
Nitrate 10
Calcium 420
Dkh 7.056
Temp 77.9
 

IF YOU HAD TO TAKE A REEFING EXAM, WOULD YOU PASS?

  • Yes!

    Votes: 32 45.7%
  • Not yet, but I have one that I want to buy in mind!

    Votes: 9 12.9%
  • No.

    Votes: 26 37.1%
  • Other (please explain).

    Votes: 3 4.3%

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