Reworded In Post 6 Crystal Black Shrimp

[pippoodle]

I have had my 3 grade a blacks in the tank for a good 6 weeks and now i have some young crystal reds and blacks come from them , is this normal ?


REWORDED in post 6

 

[Truck]

I have had my 3 grade a blacks in the tank for a good 6 weeks and now i have some young crystal reds and blacks come from them , is this normal ?

yes they can inter breed.

say one CRS bred with a CBS you could get

25 all red
50 mix (but this doesnt happen to my knowledge)
25 black

its all to do with genes and which are dominant. say the red was dominant

if you crossed a pure red with pure black theoretically you should get

75 all red
25 black

if black was dominant you would get

75 black
25 red

but this is where interbreeding becomes a problem, as you end up with unwanted strains.

 

[pippoodle]

i'm removing the reds to the other tank to keep my blacks pure as they can be
but i'm wondering wether the ones they have just had will be mixed red and blacks aswell

i didnt know wether its normal to get reds and blacks from just blacks

 

[Truck]

i'm removing the reds to the other tank to keep my blacks pure as they can be
but i'm wondering wether the ones they have just had will be mixed red and blacks aswell

i didnt know wether its normal to get reds and blacks from just blacks

yeah its normal if theyre in the same tank. its the same as getting a white rabbit from black parents. recessive genes will pop up occasionally

 

[saltynay]

They are the exact same species CRS and black and white shrimp are just selectively bred bee shrimp which come from hong kong. If you have any neocardinia species with another neocardinia it is likely they will hybridise although technically this wasn't hybridisation just interbreeding for newer colouration...

 

[pippoodle]

GOD i hate MS i know what i'm trying to say but no one understands me

OK here goes (hubby has read this)

In my hex tank i have only crystal black shrimp and cherry shrimp ( i know these cant hybridise)
my crystal blacks have mated with each other and given birth to crystal black shrimps and crystal red shrimps from JUST crystal BLACK parents

the crystal black parents are a grade and most of their babies look a grade aswell but the baby reds dont look a grade they look lower grade as per pic

one of the young CRS in the hex tank (with my baby cory)

 

[Truck]

the CBS that are already in the tank will be hybrids. and im guessing that black is the dominant gene. so you will end up with more black babies than red. if the CBS in your tank are pure CRSx pure CBS hybrids then there code for colour is this Cc (big C <(lol?) being the dominant gene black)

so two shrimp that are CRS x CBS hybrids breed so you put them in a grid like this

x C....c
C CC Cc

c Cc cc

so you will get 25% pure blacks 50% blacks with a red recessive gene and 25% pure reds so in 4 shrimp you will have 1 pure black 2 blacks with red recessive genes and 1 pure red

this is presuming that black is dominant over red. if red is dominant the results would be

25% pure reds 50% reds with a black recessive gene and 25% pure blacks so in 4 baby shrimp you would have 1 pure red 2 reds with black recessive genes and 1 pure black.

the percentages are theoretically correct but dont always abide.

 

[saltynay]

Its just a throw back gene from a previous generation just chuck them if you don't want the CRS or move them to a different tank where there are fish which may eat them let the circle of life decide whether they survive in there or provide your fish with a nice snack.

 

[pippoodle]

going to get the crs out and put them in the rio as i've got crs in there and can add to there numbers
just thought if it normally happened that crs came from cbs

i wouldn't chuck them anyway lol i could sell them on for some pennys

 

[Truck]

going to get the crs out and put them in the rio as i've got crs in there and can add to there numbers
just thought if it normally happened that crs came from cbs

i wouldn't chuck them anyway lol i could sell them on for some pennys

the CRS you put in the rio...the chances are theyre hybrids so you may get a few blacks from them.

 

[pippoodle]

going to get the crs out and put them in the rio as i've got crs in there and can add to there numbers
just thought if it normally happened that crs came from cbs

i wouldn't chuck them anyway lol i could sell them on for some pennys

the CRS you put in the rio...the chances are theyre hybrids so you may get a few blacks from them.

thats ok cos i can get any blacks out if there are any

 

[milkton]

no, its not normal, they will die in aprox. ....

now...

 

[Truck]

no, its not normal, they will die in aprox. ....

now...

rubbish, it is normal, learn some genetics! how come two black rabbits can produce a litter of 4 with 1 white? this is how the colour coding of the parents is Bb (B is black b is white.)

put them in a grid
parent 1 on the top, parent 2 down the side
X...B...b
.
B..BB.Bb
.
b. Bb..bb

so in a litter of four you get

one BB colour code so its black
two Bb colour code so its black because black is dominant over white
one bb color code so it is white

 

[Shrimper]

A lot has been written, not all of it is correct so i'll just write out my opinions

1) You have got red babies from your black shrimp because the parents are carrying both the dominant black gene and the recessive red gene... This means some of your black shrimp are the result of a Red shrimp breeding with a black shrimp. Breeders do this to improve the overall genetic of the CRS and try to improve the colour of the white stripes. As the black gene is dominant it takes 2 generations before you have any red shrimp born.

2) If you separate out the Red shrimp from your hex tank into the CRS tank you shouldn't get any black shrimp in the CRS tank. No CRS has the dominant black gene so they cannot pass it on to their offspring.

3) You will probably get some more red babies in the black tank as you can't tell by looking which black shrimp are carrying the recessive gene. Although over time there will be more shrimp not carrying the red gene than those who do carry it so the chance of red offspring will be reduced.

How the genetics work:
B is the dominant black gene and r is the recessive red gene...

If a black shrimp and a red shrimp breed all the babies will be black shrimp carrying the red shrimp:
BB + rr = Br

Some of your black shrimp will be these black shrimp that carry the red gene... when they breed the results will be something like this, 75% black shrimp and 25% red shrimp:
Br + Br = 25% BB + 25% rr + 25% Br + 25% Br

If a BB breeds with a Br all the babies will be black and only 25% of them will carry the red gene. This is why you should get less red shrimp born in the tank as time goes on.



Congrats on the red babies, if i was keeping CBS I would be thrilled to get some CRS born in the tank

 

[pippoodle]

A lot has been written, not all of it is correct so i'll just write out my opinions

1) You have got red babies from your black shrimp because the parents are carrying both the dominant black gene and the recessive red gene... This means some of your black shrimp are the result of a Red shrimp breeding with a black shrimp. Breeders do this to improve the overall genetic of the CRS and try to improve the colour of the white stripes. As the black gene is dominant it takes 2 generations before you have any red shrimp born.

2) If you separate out the Red shrimp from your hex tank into the CRS tank you shouldn't get any black shrimp in the CRS tank. No CRS has the dominant black gene so they cannot pass it on to their offspring.

3) You will probably get some more red babies in the black tank as you can't tell by looking which black shrimp are carrying the recessive gene. Although over time there will be more shrimp not carrying the red gene than those who do carry it so the chance of red offspring will be reduced.

How the genetics work:
B is the dominant black gene and r is the recessive red gene...

If a black shrimp and a red shrimp breed all the babies will be black shrimp carrying the red shrimp:
BB + rr = Br

Some of your black shrimp will be these black shrimp that carry the red gene... when they breed the results will be something like this, 75% black shrimp and 25% red shrimp:
Br + Br = 25% BB + 25% rr + 25% Br + 25% Br

If a BB breeds with a Br all the babies will be black and only 25% of them will carry the red gene. This is why you should get less red shrimp born in the tank as time goes on.



Congrats on the red babies, if i was keeping CBS I would be thrilled to get some CRS born in the tank

I am thrilled to get the red babies cos they will boost the population of my reds in my rio180 without me having to buy them lol
Free shrimp are always a plus especially when they are CRS or CBS
Thanks for the proper explaination shrimper
that's what i thought had happened but with all the other replies i was getting completly confused , so thankyou again for sorting it out

I have a seperate little tank that i'm putting a grade a red and a grade a black in cos this is my only grade a red and i want some more grade a's so i thought if i bred an a grade black (that has the red gene) and an a grade red i might be able to get a few a grade reds from it , aswelll as the blacks

am i right lol

confusing myself again lmfao