Page 1 of 2 12 LastLast
Results 1 to 10 of 15

Thread: Survival rate, did you find the cause?

  1. #1
    Regular ShrimpmasterNL's Avatar
    Join Date
    Jul 2013
    Country
    Netherlands
    Posts
    185
    Thanks
    1
    Thanked 18 Times in 18 Posts

    Default Survival rate, did you find the cause?

    Hi,

    There are many topics about survival rate, I know. All them provide basic info and good tips to improve the survival rate. But for me it's still a mystery. For example:

    1. I've had 6 females and 2 males in one tank. They produced 300+ shrimplets in a few month. The tank was overcrowded very soon.
    2. I've had many times groups with 10+ berried females, only about 10 shrimplets survive.

    I just can't figure out why. I feed all kind of stuff and don't keep a log of that, else this could give me a clue maybe. Also I tried multiple soil and filteration types, don't seems to matter much.

    The only thing I notice is that breeding in a 'new' tank had much more survival rate than in an 'old' tank. Every time I setup a new tank, let it mature, and put in a small group, the first generation is massive. But I can't keep resetting the tanks, to much work .

    So I don't ask for tips or optimal water params in particularly, but if you had this experience and how you solved it successfully. And if you did, was there something you could point out that was the key to a better survival rate? In waterchanges, waterprams, filteration, food, temperature of lightning for example?

    I know it's an old discussion but I hope someone could shine some new light on it.

    Thanks! .

  2. The Following User Says Thank You to ShrimpmasterNL For This Useful Post:

    pappy (19th Jan 2015)

  3. #2
    Shrimpy Lover hyoushoku's Avatar
    Join Date
    Jul 2012
    Country
    Hong Kong
    Posts
    1,232
    Thanks
    3
    Thanked 254 Times in 185 Posts

    Default

    It's the nutrients from the new substrate. This is why I will dose nutrients daily to keep up the losing rate over time.
    shrimpydaddy.com

  4. #3
    Regular ShrimpmasterNL's Avatar
    Join Date
    Jul 2013
    Country
    Netherlands
    Posts
    185
    Thanks
    1
    Thanked 18 Times in 18 Posts

    Default

    Hi, so for you it was the addition of nitrients that helped you deal with this problem. When you say nutrients you mean calcium/magnesium?

  5. #4
    Shrimpy Lover hyoushoku's Avatar
    Join Date
    Jul 2012
    Country
    Hong Kong
    Posts
    1,232
    Thanks
    3
    Thanked 254 Times in 185 Posts

    Default

    Not just Ca and Mg. Shrimps needs a lot of different nutrients from both diet and water column.
    shrimpydaddy.com

  6. #5
    Regular ShrimpmasterNL's Avatar
    Join Date
    Jul 2013
    Country
    Netherlands
    Posts
    185
    Thanks
    1
    Thanked 18 Times in 18 Posts

    Default

    Of course from food! Sorry, it's the translation. Misunderstood nutrients!

    But was there something particularly that had a positive effect or nutrients in general?

  7. #6
    Shrimpy Lover hyoushoku's Avatar
    Join Date
    Jul 2012
    Country
    Hong Kong
    Posts
    1,232
    Thanks
    3
    Thanked 254 Times in 185 Posts

    Default

    There is a huge list. Imagine human also need a lot of different nutrients, so does shrimp.
    shrimpydaddy.com

  8. #7
    Regular ShrimpmasterNL's Avatar
    Join Date
    Jul 2013
    Country
    Netherlands
    Posts
    185
    Thanks
    1
    Thanked 18 Times in 18 Posts

    Default

    Thanks!

    Anyone else had an experience or done something different that improved their survival rate?

  9. #8
    New Member Newbreed's Avatar
    Join Date
    Feb 2014
    Country
    Australia
    Location
    Ballarat, Victoria, Australia
    Posts
    17
    Thanks
    5
    Thanked 1 Time in 1 Post

    Default

    I always ensure I have catappa leaves for microbacteria growth, good biofilm on glass, lots of dissolved oxygen (oxydators) and feed powdered bub food daily.

    Also I add mineral powder and bacteria powder weekly.

    Survival rate seems good at present.

  10. #9
    Shrimpy Lover hyoushoku's Avatar
    Join Date
    Jul 2012
    Country
    Hong Kong
    Posts
    1,232
    Thanks
    3
    Thanked 254 Times in 185 Posts

    Default

    Hi Newbreed,

    OOT: Chronic hyper-oxygenation will cause stress the livestock, including shrimp. In serious case, oxygen bubble may appear in the blood stream or accelerate the oxidation of minerals and cells. As such, be careful when using oxydator. If you have a DO meter with good membrane, you may want to measure periodically.
    shrimpydaddy.com

  11. #10
    Regular ShrimpmasterNL's Avatar
    Join Date
    Jul 2013
    Country
    Netherlands
    Posts
    185
    Thanks
    1
    Thanked 18 Times in 18 Posts

    Default

    Sometimes I wonder if survival rate is the correct term. Maybe sometimes it's: hatch-rate. In my experience the number of shrimplets I see after 5 days, that's about 95% of the shrimp that will grow up.

    To observe this better I have a very 'clean' tank at the moment. With only some leafs on the bottom and very few mosses.
    So far 3 shrimplets has hatched, will keep counting...

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Oebt babies survival rate low
    By GuppyLove in forum Tiger Shrimps and variations
    Replies: 12
    Last Post: 8th Feb 2011, 04:27 AM
  2. RCS babies survival rate
    By CrystalMethShrimp in forum Crystal Red Shrimp
    Replies: 3
    Last Post: 28th Apr 2010, 07:11 AM
  3. High Grade CRS Survival Rate
    By monkey_wrench in forum Crystal Red Shrimp
    Replies: 2
    Last Post: 8th Oct 2009, 07:55 PM
  4. Sulawesi Shrimp Survival Rate after 1 month
    By silane in forum Sulawesi Invertebrates
    Replies: 0
    Last Post: 10th Apr 2008, 10:36 PM
  5. Survival rate
    By billionzz in forum Crystal Red Shrimp
    Replies: 10
    Last Post: 17th Oct 2006, 01:22 AM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •