Shopping Cart
0 item added.
The Shrimp Farm, Aquariums  Dealers, Bloomington, IL
 

GUARANTEED LIVE ARRIVAL ALL YEAR LONG & LOWEST FLAT RATE SHIPPING PRICE IN THE INDUSTRY

Research

  • Soft Water Shrimp in Hard Water

    There has been a lot of debate lately among Dwarf Shrimp hobbyist about weather or not some of the “soft water” shrimp can be kept in hard water.  Well, I have plenty of experience with hard water as I live in the Orlando area of Florida and my water is basically liquid rock.  It has a pH of 8.4 and is extremely hard.

    "Soft water” shrimp, as I am calling them in this blog post, are basically those shrimp that have ideal water conditions that are soft and slightly acidic such as the Tiger Shrimp and the Crystal Red Shrimp (both have very similar optimal condition requirements).  For the sake of this argument I will use the Tiger Shrimp for an example.

    Tiger Shrimp optimal water parameters are fairly soft water with a pH of about 6.4 and a temperature of about 72.  They can be acclimated to different water, but it has a large affect on life span and on breeding.

    I will be conducting an experiment here to show the effect of acclimation to sub-optimal conditions.

    First let me tell you about my current experiences.

    I have kept Tiger Shrimp in water that has a pH of 7.8 and was moderately hard.  They lived about a year and bred once.  My Tiger Shrimp that I keep in water that has a pH of 6.4 and is soft they seem to live about 2 years and breed often.

  • Dwarf Shrimp - Birth to Berry (update #2)

    It has been 3 days since the young blue pearl shrimp hatched (Merry Christmas to Me!) and today I have observed breeding behavior in the aquarium again.  All the males in the aquarium are swimming erratically threw the water column, and I found a recent molt of female that just dropped her first generation of young. 

    When a female shrimp is about ready to breed she will find a secure hiding spot, molt, and then release a pheromone into the water column indicating her readiness to breed.   This pheromone causes the males to swim erratically in search of the female until the pheromone is dissipated. I will be keeping a close eye on the aquarium in anticipation of finding the female berried again!

  • Dwarf Shrimp - Birth to Berry (update)

    Posted: 25 Dec 2007 01:51 PM CST

    After carrying eggs for 20 days exactly, the first baby shrimp have been observed.  61 Days after the Blue Pearl Shrimp (Neocaridina cf. zhangjiajiensis) were born the second generation was born.  Here is a recap of the aquarium these shrimp were raised in and the maintenance procedures.

     

    • 2.5 Gallon AGA Aquarium.

    • PH 7.8-8.0

    • Temp: 78

    • Bare Bottom

    • Small piece of Drift Wood with Java Moss and Java Ferns

    • 10 Blue Pearl Shrimp

    • Daily ¾ gallon water change (almost daily J)

    • Seachem Prime used with every water change

    • 1 small pellet of Hikari Crab Cuisine pet day (twice on some days)

    I suspect the very rapid time frame from birth of the original Blue Pearls to the birth of the second generation has a lot to do with the water temperature, frequent feedings, and daily water changes.  Water parameters were kept pristine at all times.

     The second generation of shrimp will stay in this aquarium and will be observed for the same project.  I suspect that with the larger amount of shrimp in the aquarium the birth to berry time will be a bit slower.

  • Dwarf Shrimp

    I recently decided it was time to time how long it takes for Neocaridina shrimp take to go from birth to fully matured adults.  The way I tested it was to put newborn shrimp into their own aquarium and track the time until the first female is found berried (carrying a clutch of eggs).  

     The first species test was the Blue Pearl Shrimp (Neocaridina cf. zhangjiajiensis).  12 newly hatched shrimp were placed in a 2.5-gallon well-cycled aquarium.  The aquariums specifics are: 

    Blue Peearl Shrimp

    Size: 2.5 Gallon

    PH 7.8

    Temp: 75-78

    The shrimp were fed 1 small pellet of Hikari Crab Cuisine (half a pellet when the shrimp were younger).  All detritus was siphoned out and small (10% of water volume) is changed almost daily.

    The young Blue Pearl Shrimp were born on October 24th 2007.  They were transferred to their own aquarium 2 days later.  On December 4, 2007 the first berried female was observed.  41 days total.

    Observations and theories:

    • Heavy feeding may have aided in rapid maturity
    • Many small water changes kept water parameters pristine, which again may have helped with rapid maturity
    • After the first few weeks, at least 1 molt was found per day.
    • Females began to display the “saddle” about 10-12 days before the first berried female was observed.

    Cherry ShrimpI have started a Cherry Shrimp (Neocaridina heteropoda var. red) experiment as well, with the same water conditions and same size aquarium.  I believe the Cherry Shrimp will grow at about the same speed as the Blue Pearl Shrimp.   Updates to come!

  • Neocaridina heteropoda research experiment. (Update #2)

    Breeding behavior observed.

    Today I observed the male Cherry Shrimp swimming franticly around the aquarium that he is housed in with a female wild type Neocaridina heteropoda.  He was also observed hanging out with and rubbing against the female.  This is typical of behavior displayed before this species of shrimp breed.

    This pair of shrimp has been together since the 19th, so a little over 10 days.

    Here is a picture of the pair.

    Cherry Shrimip and Neocaridina heteropoda

  • Neocaridina heteropoda research experiment

    As of today I am conducting an experiment with Neocaridina heteropoda. I am going to attempt to describe the genetics of the red coloration found in the Cherry Red Shrimp (Neocaridina heteropoda var. Red). I will be crossing the wild type and the red verity of the Neocaridina heteropoda and then crossing the F1 offspring with the red variant and themselves.

    This experiment should show weather the Red gene is a recessive, a double recessive, or another type. I do not believe the gene is sex linked, and do believe it to be a double recessive. Here is the experiment as I plan to conduct it.

    Characterization:

    What are the genetics of the red coloration of a Cherry Red Shrimp?

    Hypothesis:

    The Red gene is a double recessive non-sex linked gene.

    Predictions:

    - Fry of Male Red and Female Wild will all be wild colored. (F1)

    - Fry of Female Red and Male Wild will all be wild colored. (F1)

    - Offspring of F1 fry mated with Red mated with Red will be ~75% red

    - Offspring of F1 mated with another F1 will be ~25% red

    Experiment:

    - Separate one red male and one wild female into their own tank.

    - Separate one red female and one wild male into their own tank.

    - Observe offspring for coloration

    - If no red coloration is displayed breed offspring (F1)

    - Breed F1 male to Red Female

    - Breed F1 female to red Male

    - Breed F1 male to F1 Female

    As the experiment continues I will give updates and include pictures.

Items 11 to 16 of 16 total

Page:
  1. 1
  2. 2