Jump to content

I bit the Bullet


Baccus

Recommended Posts

So I finally bit the bullet and made a determined effort to sort out my black cherry shrimp. A while ago I removed all the chocolate (really deep dark brown) and yesterday I hunted blues,  and any remaining chocolates from the tank.

Amazingly I found heaps of Black backed with blue underside Cherry's which I don't plan on putting back with the blacks since they are not full bodied black and also some stunning deep royal blue cherry's. Even tiny shrimplet blues where emerging out of the recesses of the tank as I removed every possible hidey hole during my hunt for shrimp.

So here are a couple of shots of the quality of the blues I did remove.

The big female wasn't wanting to co-operate for a photo shoot.

P1190014.JPG

P1190021.JPG

P1190026.JPG

P1190028.JPG

  • Like 4
Link to comment
Share on other sites

Very nice mate, beautiful colour, the blues really catch the eye don’t they.

Wish everything was going smooth for my tank & shrimp.


Sent from my iPhone using Shrimp Keepers Forum

Link to comment
Share on other sites

I think the deep dark blue is my favourite shrimp colour after Crystal Red and Black. But since experience has taught me that crystal shrimp don't love me as much as I love them I stick to the Cherry's and Natives.

I'm sure your tank will settle down, mostly it just takes time and having to wait between too many drastic changes to find the happy medium.

  • Like 1
Link to comment
Share on other sites

Could well be the path I head down the way I’m going.

The Blues are stunning aren’t they, I also like the Bloody Mary but the Blue Dreams go BANG!


Sent from my iPhone using Shrimp Keepers Forum

Link to comment
Share on other sites

  • 1 month later...

An interesting development in the black cherry shrimp tank.

After removing everyone I could find that was not black black including the odd wild type that still occasionally cropped up I am now finding what remained of the black breeding colony is now producing dark red, lots more blues and some slight yellowish offspring.

The only thing added to the tank since the massive resort has been a clay log (have used it in tanks for years so I would say tank safe) and some tiny peacock gudgeons. The tank already housed a couple of whiptails, Pacific Blue Eyes and nerite snails so I am not certain the addition of a new potential predator would make the shrimp go crazy in the what colour to produce department.

Is it possible that in removing the blacks that had blue underneath I destabilised the black component of their genetic make up?

Link to comment
Share on other sites

  • HOF Member

Hi Baccus long time since we talked. I have my original black colony from  2013 that came from Dean. I eventually just left them to themselves even keeping a lot outside - which here in SA is probably not recommended. Anyway my colony consistently throws - deep black with blue base, blues of varying shades, lovely chocolates , good bloody mary but also a few wild types but not many. As I have closed my shrimp room I don't have tanks to spare so they will be left together. I haven't added any new genetic lines since 2013 and I'm not having any issues with deformities. 

I did at one time put each colour into a separate tank and they bred about 95% true to colour in each tank however the blacks continued to give a variety .

When I first received my colony from Dean there were Blacks and Chocolates together -That's how he sent them and that's how i kept them. I did cull any lighter shrimp and a good many blues until I realised the blues were of interest. Unfortunately not many people seem to be able to get them to breed true100% - Blue Diamonds require a lot of culling and even then they generally give a wide variation in blue.

I have included some pictures of the original colony sorry about the quality but phones weren't very good for pictures back then. I don't have any blue or red pictures available but will try to get some of the current shrimp over the next few days -they are all in together in my big tank or outside in the pond

2013-11-09_12_11_00.jpg

2013-11-09_12_11_49.jpg

2013-11-09_11_57_35.jpg

Edited by ineke
Link to comment
Share on other sites

  • 3 weeks later...

Thank you for the imput Ineke. I too started with a mix of chocolate and black, nearly lost the lot thanks to an invasion of dragonfly caddis's and I ended up putting the few survivors into my 1000L pond. Months later I found chocolates in the pond and got interested in trying to get a good tank of them again.

I swear my black cherry shrimp tank is determined to do my head in...….Almost every shrimp in there now is either blue (and practically all the shrimplets are blue) or a very definant blue/black. And the 4ft where I put all the dark chocolates are now producing lots of blacks. I know its an odd thing to complain about, getting too many blues, but come on I really loved the glossy all black cherry's.

Oh and on a side note. In the dedicated Blue cherry tank I am getting deep blues, clear blues (diamonds?) and apparently for good measure blue rilli. And there is no way the shrimp can get between the tanks because no swapping around of plants has occurred and the tanks are a good 2-3m apart over a concrete floor.

Link to comment
Share on other sites

  • HOF Member

Unfortunately unless we can get at the black shrimp and cull everything else constantly we will always end up with a few blues etc. I tried for sometime to get just blacks but I think it must stem back from when the blacks were first being bred here and nearly always kept with chocolates. Even back in my 2013 colony that i got from Dean there were blacks and chocolates together. The blues didn't start turning up straightaway but even with culling I ended up with all 4 colours. i know many people have the same issue when trying to breed the blue diamonds- blue from black -they have to cull hard and constantly and truthfully I don't think any or at least only a few have a large colony of blue diamonds that breed 100% true. 

You need to try and find a few blacks that don't show the deep blue - try putting them in a white container near a light source - you will see the blue/black colour more readily -if you are lucky enough to get a trio of true black without the blue base you might get started -good luck!

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Join Our Community!

    Register today, ask questions and share your shrimp and fish tank experiences with us!

  • Must Read SKF Articles

  • Posts

    • ngoomie
      Alright, I've done a bit more research on gentian violet's cancer-causing potential but I haven't yet done research on malachite green's to compare. But from reading the California propositon 65 document about GV (North Americans incl. some Canadians will recognize this as the law that causes some products they buy to be labelled with "known to the state of California to cause cancer", including the exact product I bought) it seems that the risk of cancer is related to internal use, either injection or ingestion. Speaking of ingestion, I think GV bans mainly relate to its use in treating fish/shrimp/etc. which are intended for human consumption, because of the above. And in countries where GV isn't banned for this purpose, it does seem to get used on various species of shrimp without causing any issue for the shrimp themselves (at least enough so for shrimp farming purposes). See the following: In February, the FDA Began Rejecting Imported Shrimp for Gentian Violet and Chloramphenicol (2022 article by Southern Shrimp Alliance) FDA Starts New Calendar Year by Refusing Antibiotic-Contaminated Shrimp from Three BAP-Certified Indian Processors and Adding a BAP-Certified Vietnamese Processor to Import Alert (2024 article by Southern Shrimp Alliance) Southern Shrimp Alliance and some other organizations have tons of other articles in this vein, but I'd be here for a while and would end up writing an absolutely massive post if I were to link every instance I found of articles mentioning shrimp shipments with gentian violet and/or leucogentian violet registering as contaminants. That being said, I know shrimp farmed for consumption and dwarf shrimp are often somewhat distantly related (in fact, the one time a shrimp's species name is listed that I can see, it's the prawn sp. Macrobrachium rosenbergii, who at best occupies the same infraorder as Neocaridina davidi but nothing nearer), but this at least gives a slightly better way of guessing whether it will be safe for aquarium dwarf shrimp or not than my bladder snail anecdote from the OP.
    • sdlTBfanUK
      I would hazard a guess that perhaps those eggs were unfertilized and thereby unviable? Did the eggs change colour, usually yellow to grey as the yolks used up, or any eyes in the eggs. Is your water ok, using RO remineralised and the parameters in range, as I have heard others say that if the water isn't good it can 'force' a molt? How is it going overall, do you have a good size colony in the tank, you may have reached 'maximum occupancy' as a tank can only support so many occupants.
    • beanbag
      Hello folks,  The current problem I am having is that my Taiwan bee shrimp are molting before all their eggs have hatched.  Often the shrimp keep the eggs for 40+ days.  During that time, they lose about half or so, either due to dropping or duds or whatever.  Shortly before molting they look to have about a dozen left, and then they molt with about half a dozen eggs still on the shell.  Then the other shirmp will come and eat the shell.  These last few times, I have been getting around 0-3 surviving babies per batch.  I figure I can make the eggs hatch faster by raising the water temperature more (currently around 68F, which is already a few degrees higher than I used to keep it) or make the shrimp grow slower by feeding them less (protein).  Currently I feed Shrimp King complete every other day, and also a small dab of Shrimp Fit alternating days.  Maybe I can start alternating with more vegetable food like mulberry?  or just decrease the amount of food?
    • ngoomie
      Yeah, cancer risk was a thing I'd seen mentioned a lot when looking into gentian violet briefly. I kinda just figured it might only be as bad as the cancer risk of malachite green as well, but maybe I should look into it more. I've been doing a pretty good job of not getting it on my skin and also avoiding dunking my unprotected hands into the tank water while treating my fish at least, though. Maybe I'll just not use it once I'm done this course of medication anyways, because I know a store I can sometimes get to that's pretty distant carries both malachite green and methylene blue, and in pretty large quantities.
    • jayc
      Can't help you with Gentian Violet, sorry. It is banned in Australia violet for potential toxicity, and even possible cancer risks. I thought it was banned in Canada as well. At least, you now know why there isn't much info on gentian violet medication and it's use. But keep an eye on the snails after a week. If it affects the snails, it might not kill them immediately. So keep checking for up to a week. Much safer options out there. No point risking your own life over unsafe products.
×
×
  • Create New...