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Ce livre d'or en français This guestbook in english 

Stéphane Coupal (Montréal, Canada)
-/10
le 26/09/2010 à 03:48  

Mes crevettes cardina japonica ont un problèmes!

Autrefois actives et gourmandes, elle sont depuis trois semaines assez différentes.
Leur peau s'est assombrie, elle sont très peu actives, demeurent cachées toute la journées et elle ne s'alimentent plus; refusant même les pastilles pour lesquelles elles se disputaient. Pas nécessaire de mentionner qu'elles ne mangent plus d'algues non plus. De plus, elles sont regroupées (ce qu'elles ne faisaient pas), voire entassées l'une par dessus l'autre, leur queue est légèrement repliée sur elle-même et semblent même avoir de la difficulté à nager. Leurs pattes bougent régulièrement de façon frénétiques. Je n'ai pas noté de différence concernant la mue.

Elles vivent en cohabitation un beta ,avec cinq tetras yeux rouge et cinq tacychtys dans une cuve de 10 gallons. Elles mesurent environ 5 cm. Je les ai acquis de cette grandeur il y a de cela six mois. La qualité de on eau est stable et ne semble pas être en cause. Mon bac est généreusement planté.Le beta ne semble pas agressif envers elle. Il s'en approche par curiosité lorsqu'elle se retrouvent attroupées à l'avant du bac.

Avez-vous une piste ou est-ce dans leur habitude de changer de comportement de la sorte?

Merci!
Baptiste (Dollon, France)
10/10
le 30/08/2010 à 21:25  

salut !
mon message ne va pas beaucoup différé par rapport aux autres : ton site est excellent , pleins d'infos , pleins de photos bref... le top !!
Si tu passe dans la sarthe un de c 4 je serai ravi de te rencontrer !! !!
Merci pour les nombreuses heures que tu as du passer pour donner naissance à ce site et a ces crevettes !!
bonne continuation...bien que je ne m'en fasse pas du tout pour toi vu comment tu te débrouille !! ;-)
Maverick (Singapour)
-/10
le 18/08/2010 à 03:07  

Hi I was searching for a website for breeding the amano shrimp and your website is excellent! Simple to follow, and there are even pictures of the larvae and baby shrimps. Very professional! Thanks for your advice!
Inleea (France)
-/10
le 10/08/2010 à 16:47  

De retour de vacances et quelle surprise !!!! 3 de nos 4 crevettes sont pleines d'oeufs.
Envie de s'amuser a en faire grandir quelques unes. Je vais suivre tout ca a la lettre. Ce soir, je vais lancer le bac de ponte (en prenant de l'eau du bac principal pour éviter un choc).
merci
Tanguy (Paris, France)
9/10
le 05/08/2010 à 19:07   

Merci pour le site, ça fait plaisir !
Haley
-/10
le 31/07/2010 à 14:01  

Very good information, especially the full seawater, my survival rate went up dramaticly! Mike's site is no longer availible.. very sad.
Dano (Belgique)
9/10
le 26/07/2010 à 02:09  

Bonjour comme vous pouvez le constater j'ai noter ce site 9 sur 10, car j'ai une question a vous poser et qui ne figure pas dans vos explications
Combien de temps les larves restent elles dans l'eau douce avant de les mettre dans l'eau salée
Ensuite l'eau salée acheter dans les magasins d'aquarium est elle bonne pour ce type d'élevage
Tolga (Göttingen, Allemagne)
8/10
le 26/06/2010 à 14:36  

Hello,

Thanks a lot for this awesome website. I have a very fundamental question: I have a female which will be hatching soon, however I don't know how soon. I have the feeling that the larvae are there since approx. 3 weeks, but I cannot be sure, it might also be a bit more than 4 weeks. Is there a way to understand whether the female is ready to hatch very soon?
CHERIE (Mantes, France)
10/10
le 09/05/2010 à 08:30  

bravo pour ce Site. J'ai une QUESTION Mes amanos fréquentent souvent la décante de mon 180 L Je pense qu'elles se régalent des déchets; mais y a t il un risque de les autoriser à y aller, car un filtre se nettoie et j'ai toujours peur de les abimer même si elles comprennent qu'il faut s'en aller ? D'ailleurs je me demande comment elles peuvent entrer dans la décante ????
Momir Milojevic (Sarajevo, Bosnie Herzégovine)
10/10
le 21/04/2010 à 15:17  

Thank you very much for English translation, and congratulations for most comprehensive site on net for breeding these shrimps
Jimmy (Madison, Wisconsin, Etats-Unis)
10/10
le 12/04/2010 à 04:39  

Thank you for this excellent site! I really appreciate the translation into English.

After following your step by step outline, I have had great sucess and just desalted the first 5 of a batch of at least 40. It's really hard to say how many I'm going to end up with as they are all over the place in the salt water tank. Probably many more than I will need. Fortunately they will have no problems finding good homes.

Thanks and keep up the good work!
PCT (Los Angeles, Etats-Unis)
7/10
le 26/03/2010 à 00:59  

Thank you for this info. I was going to buy a few shrimp to help me with a black algae problem I've been having, but your site convinced me to pay closer attention to the root causes of the problem.
Julien de fontenay (FONTENAY SOUS BOIS, France)
8/10
le 27/02/2010 à 23:42  

J'ai acheté un aquarium de 60L il y a deux mois. Je dispose de 4 crevettes caradinitas japonicas, 2 corydoras pandas et 4 danios rérios. Je comptais mettre un peu de couleur dans l'aquarium. J'ai vu que tu avais mis des platys. A animalis, j'en ai vu des magnifiques. J'irais en acheter lundi.

Pour terminer ce message Si tu souhaites voir pondre tes crevettes meme en plein jour il faut acheter plus de femelles que de males. Sur mes 4 crevettes, j'ai un seul male et je peux te dire qu'il est très content de s'être retrouver avec toutes ces demoiselles.
Yves (Orléans, France)
8/10
le 31/01/2010 à 10:41  


Bonjour,
Nous sommes le 31 janvier. Ma crevette est pleine d'oeufs de couleur verte depuis environ une semaine.
Je vais commencer à lancer l'installation de bacs et la culture pour accueillir les z'éventuelles zoés.
Plus de nouvelles en fonction des résultats.
Thomas Støvring (Copenhagen, Danemark)
10/10
le 25/01/2010 à 18:26  

Regards You are doing a fine job -big cadoux, there is so many diffent theories on the net, and you are probably right that there is regional differences of the species. Ive read about some who changed the whole akvarium gradually to salt with succes, and only found 2 sites ive trust and your are one, ppm 33 and the other one witch I havnt found again, I think was japanese and maybe the one you link to "http://mikes-machine.mine.nu/breeding_yamato.htm." but I couldnt make the link work, so I dont know. Im in the micro akvarium, 6 L. with 4 shrimps, 3 females. And 2 are pregnant just now, so the plan is to try to catch the 2 and move to another 6L and then change it to 33 ppm gradually. Its winter and dark so my problem is creating proto planton, but ive a glass of saltwater going in the window. Any way Thanks Thomas
Magnus (Reykjavik, Islande)
9/10
le 02/01/2010 à 21:46  

ty for having site in english ,all my troubles are ower
R.TUINSTRA"SPIDER" (AMERSFOORT, Pays Bas)
8/10
le 25/12/2009 à 00:45  

tHERE ARE A LOT OF CONGRATULATIONS FOR YOURE SITE .
i AGREE WITH ALL OF THEM.
'VE GOT THE LUCK, ICAUGHT A cj tOO HAVE A CLOSE LOOK AT THE EGGS, ADDED SOME SALT, ONE DAY LATER I HAD THE YOUNG ONES.
tHANKS THE SITE, I KNOW HOW I'LL CONTINU THE PROJECT.
mERCI.
bONNE ANNÉÉ!!
Karl (Victoria, Canada)
9/10
le 26/11/2009 à 06:52  

Hello,
I have to thank you for this great site! I have found your information to be very helpful. I had a female which was carrying eggs and I managed to get her in a small tank and had a small amount of eggs hatch. I have the surviving larvae in a saltwater tank and they are 25 days old now. Thank you for the info on this site.
Rick in japan (Amakusa, Japon)
10/10
le 25/10/2009 à 17:39   

hi,

great site. i just wanted to comment on a couple of the hypotheses you had about C. japonica. i live on an island in southwest japan where this shrimp is abundant in most local rivers and streams. instead of buying them at the shop i can get them directly out of the creek near my house with an aquarium net! anyway, at one point you said cj only eats green algae. maybe you've had other reports of this by now, but i can attest that it consumes brush algae with great gusto in my tank. if brush algae threaten as happens from time to time, i just 'borrow' 20 or 30 shrimp from the creek for a week's worth of cleanup work. (plus the usual permanent population of 15-20 in my 200-L tank). all the shrimp seem to enjoy this job! of course you are right in saying cj cannot completely control or eliminate algae in the tank; though they feed continuously, in the end they each only consume a small amount per day.

my other comment relates to the shrimp's reproductive cycle, specifically the salinity of the water the larvas need to survive. there are very few swamps or brackish water here in Amakusa; the coastlines are mainly mountainous and most of the island's streams empty directly into the sea. so i think you may be right in supposing there may be several varieties of this shrimp out there. it would be interesting to know where the japanese did their studies.

anyways, cheers and thanks for a really helpful site!

-rick
Hein (Utrecht, Pays Bas)
9/10
le 23/10/2009 à 22:31  

Hi,
I find your site really interesting.
Ik have tried to breed amano's once, but failed, most probably due to low salinity. Now that I have read this, I will try again.
My shrimps live is a 180 liter fish tank with lots of fish, already for about 4 years. So I think that the life expectance is way beyond the 2-3 years that you mention here.
Izzy (Royaume Uni)
10/10
le 22/10/2009 à 21:03  

Thank you for your site- it is very interesting . It is (in my opinion) the best site on breeding Amanos. I got one shrimp a few years ago (turned out to be a female) and fell in love with it , and recently saw some in my lfs, and decided to try breeding them. Your site is very informative and presented clearly. It's kind of you to translate it into english and to spend some time and effort in sharing your experience and sucess with breeding and caring for these wonderful little shrimps.
Rafael Morales (Toronto, Canada)
10/10
le 09/10/2009 à 01:05  

congratulations for that amazing work you did!

There has been few people that have sucesfully breed the amano shrimp,

Thanks for showing and sharing the work that you did. You encourage other people to do it, that show the way for others

Congratulations again!

félicitations

Rafael

El trabajo que has hecho es de admiracion, lo mejor de todo, es que lo has compartido,y con tu ejemplo, invitas a seguir lo que has hecho.

La pasion y el amor a los sueños, hacen que se materialice
felicitaciones amigo!

Rafael
Diane (Anchorage, Alaska, Etats-Unis)
-/10
le 22/07/2009 à 08:30  

Thanks so much. I have only one little guy, who was mistakenly sold to me as a female egg-carrying cherry shrimp, but now I know he is definitely a Japonica. Now I feel bad that he is alone, and will look for companions.
Mick (Bournemouth, Royaume Uni)
10/10
le 13/05/2009 à 13:05  

Bonjour,

What a very informative website, great photographs. I have four large femals with hundreds of eggs each, so with your information and that of mike I will try for the first time to breed baby amanos...

Wish me luck!
Zdam20 (Bismarck, Etats-Unis)
10/10
le 21/03/2009 à 15:27  

Great site! I used to culture sw phytoplankton for my sw tanks so This method of breeding should be relatively simple. Thanks for the info.
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