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Black spot in shrimp

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Black spot in shrimp

Postby tpot » Mon May 14, 2012 12:41 pm

Has anyone any experience of this? I have heard it mentioned on another sight, but no answer was given, and as it was something I had not come across I wondered if anyone here knew anything about it? I believe it is a black mark in the body just behind the eyes (not very good on shrimp anatomy). Is it something that can be avoided/treated and how does it affect the shrimp if you do get it? Does it harm the shrimp or shorten their life expectancy?
Many thanks in advance
tpot
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Re: Black spot in shrimp

Postby Dane » Tue May 15, 2012 6:41 pm

Black spot disease is another type of bacterial infection, its a shell degrading infection which eats away at the shell leaving holes, giving the appearance of black spots. The spots appear all over the body and will kill the shrimp in a relatively short space of time, it is contagious amongst shrimp.

It should be treated like any other bacterial infection. You can use Beta Glucan as a prevention or Seachem Paraguard as a treatment.

You will find some good information in this PDF: http://www.fishdept.sabah.gov.my/downlo ... prawns.pdf
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Re: Black spot in shrimp

Postby tpot » Wed May 16, 2012 12:10 pm

Thankyou for the reply Dane, very interesting link too. I already feed mine organic porridge oats which has been recommended to aid their immune system, and dried nettles, as well as cory pellets, algae wafers and frozen blood worm. I shall know what to look out for when buying new stock as I am hoping to upgrade my CRS line eventually if I ever find any that is :(
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Re: Black spot in shrimp

Postby hobbyshrimp » Wed May 16, 2012 9:29 pm

I know the feeling tpot my only local shop is dobbies and there useless. They had red rilli marked as crystals. When I told him he looked and agreed. Then proceeded to say that's what they were supplied as so that's what we sell them as :oops: So I'll stick to online buying for now.

HS
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Re: Black spot in shrimp

Postby Dane » Thu May 17, 2012 9:37 pm

I think due to a lack on in depth knowledge, most shrimp sales in the UK will always be internet based. As retail outlets are obviously all about the margins, it is unlikely they will ever stock the rarer, more sensitive shrimp, its just not financially viable.

Its not always a bad thing though. Because online stores have fewer overheads, it should mean prices are much lower!
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Re: Black spot in shrimp

Postby tpot » Fri May 18, 2012 10:47 pm

I`ve put my Bee shrimp on e-bay at £2.50 per shrimp and some one has offered to buy 6, but said they wanted the red and white shrimp really not the Black! I`m waiting to see what his reaction will be now I`ve told him they are NOT Black crystals but BEE shrimp! I wouldn`t mind but I am selling them as BEE shrimp not Black and there is a photo and they look nothing like CBS!
I have a Maidenhead Aquatics near me that were going to go down the road of some high grade CRS, but we went last Wednesday and they`d either been snapped up or he`d not got them in yet. That was the store I got my Red Blossoms from and touch wood they have settled in really well, which is a relief as they were expensive for me.
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Re: Black spot in shrimp

Postby Atyidae » Thu May 24, 2012 1:59 am

tpot wrote:I`ve put my Bee shrimp on e-bay at £2.50 per shrimp and some one has offered to buy 6, but said they wanted the red and white shrimp really not the Black! I`m waiting to see what his reaction will be now I`ve told him they are NOT Black crystals but BEE shrimp! I wouldn`t mind but I am selling them as BEE shrimp not Black and there is a photo and they look nothing like CBS!


Hi tpot.

Got a bit of info on shrimp jargon!

The term 'Bee shrimp' is synonymous with 'Crystal Black / Black Crystal shrimp', but terms are often confused in the hobby due to misuse. 'Crystal Black' shouldn't really be used at all, I believe it's a bit of a nonsense term coined from the trademark 'Crystal Red shrimp'.

The shrimp you have on eBay are Bee shrimp, or Crystal Black shrimp. To be true to these names they should have a wild-type phenotype. Similarly, Crystal Reds should have wild-type pattern, but be red and white instead. They should all have NO gold bee ancestry, but obviously this is extremely difficult to determine. Bee is usually used for wild shrimp or pure wild-strain.

For shrimp that have higher grade patterns, use the terms Black Bee and Red Bee. This includes, and is predominated by, shrimp with gold bee ancestry. These terms do encompass Crystal Blacks and Crystal Reds. (Aka, a Crystal Red is always a Red Bee, but a Red Bee isn't necessarily a Crystal Red).

Despite this, the terms are used interchangeably, causing confusion - though it's not surprising that it happens.
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Re: Black spot in shrimp

Postby tpot » Fri May 25, 2012 5:31 am

Thankyou for the reply that is something I didn`t know and it has never been explained to me before.
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Re: Black spot in shrimp

Postby Atyidae » Fri Jun 15, 2012 11:48 am

tpot wrote:Thankyou for the reply that is something I didn`t know and it has never been explained to me before.


No problem! :D
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