Jump to content

how long to molt?


sarah
 Share

Recommended Posts

How long should it take a shrimp to molt, from the time the shell behind the carapace opens up? Is it minutes. hours, days?

 

I just noticed one of my PFR adults got caught up in the outflow from my HOB filter, and it was so immobile that I thought it was dead. It landed on a leaf, and has not moved much in the last few minutes since. It's not dead, but it does have that gap, and the sides of the carapace seem to be flared a bit (can see in last photo)... so I think she may be trying to molt.

post-1734-0-11982200-1455207177_thumb.jp

post-1734-0-99254900-1455207207_thumb.jp

post-1734-0-59945600-1455207238_thumb.jp

post-1734-0-94382300-1455207346_thumb.jp

Link to comment
Share on other sites

I have seen them for a day, maybe more? with the shell crack. I think when you see them with the crack and they seem like they cannot move well, that's when the negative outcome happens. The one time I was lucky enough to witness a molt in action, it was just a few mintues from when I saw it 'fall' to the bottom, to when it emerged.

 

Just lost one last night to a failed molt (no crack when I found him immobile, tho)

 

I imagine water params have an effect on time to complete a molt, as well as perhaps size and maturity of shrimp.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
 Share

×
×
  • Create New...