View Full Version : Amano spawn

21st Jul 2006, 04:14 AM
Lo guys,

10 ten days into my second attempt at breeding Amanos



21st Jul 2006, 04:31 AM
They look like tiny minnows swimming in a stream... Nice pic (a little blurry, but still nice). Keep us posted on your progress...

21st Jul 2006, 05:43 AM
Is this further than you got in your first attempt? If not then do you see any improvement like higher rate of survival or development? Best wishes and hope they grow to become adults! :)

21st Jul 2006, 05:49 AM
The first attempt lasted 3 days with only 10 zoes to start with!

24th Jul 2006, 12:03 PM
hi zax. I think you should record the water condition for succeeding

Amano breeding. I heard that no one succeeded breeding

amano shrimp in captivity so far .

As far as I know you are the first one to breeding Amano shrimp. :rolleyes:

Good luck!

24th Jul 2006, 01:36 PM
As far as I know you are the first one to breeding Amano shrimp. :rolleyes:

This is incorrect.

24th Jul 2006, 02:30 PM
I have them in full strength sea water (made from Tropic Marine) at 34 ppt. I make this with mature water from my 5 ft planted tank. At day ten nitrite levels went through the roof even after 50% water changes, so I evacuated them into another sea tank I had running. I have lost quite a few by them getting stuck in the water tension. A 20% water change every few days seems to remedy this. I aerate the 5 lt tank with 2 small airstones and I feed the zoes with phytoplankton which I cultivate and feed in the same tank. I light the tank for 24 hours a day and I also have some crushed coral in the bottom of the tank, temp 28 oC. I do seem to have lost alot of them before the evacuation, I must have had initially 1000 zoes as I had three spawns. Maybe the large number of zoes caused the nitrite levels to rocket even after water changes, I don't know. They seem to be doing better now some are at about 4-5 mm in size. Mike Noren's article says that when the zoes morph into adults they become less tolerant to full strength sea water but I've read on forums of people keeping the post larvae Amanos in sea water for up to three months after morphing, any ideas? Cheers.

7th Aug 2006, 10:39 PM
Today was the 27th day and I have only 16 zoes left, all in the mysid stage. Also, one of the zoes has morphed into the adult form. It was very difficult to spot because after morphing they change colour and become almost transparent like the adults. I have placed it in brackish water now and it seems quite stable. I now have to perfect this process. I have another batch of 700-800 zoes which hatched yesterday, this time I have split them between three tanks. Still experimenting with various parameters to try and increase the yeild.

22nd Aug 2006, 05:37 PM
Just to update things, I had one zoe morph into the adult form from the whole of the previous spawn :sad2: which I then killed by reducing the salinity too fast :wall:

But on a better note, today is the 26 th day of my 3 rd spawn of which I have remaining 150 zoes aproximately. I decided to check if any had morphed by lowering the water level in the tank to just 1 inch. To my suprise :shocked: and delight :D I found 15 zoes had morphed and were darting around the tank at lightning speed. I caught them with a pipette (which was murder to do as they move so fast) and transfered them to another container...



I will now commence to reduce the salinity over a number of days very slowly by dripping the water in through an airline.

22nd Aug 2006, 11:55 PM
Awesome!! Maybe when you are done, you can share your entire experience so others may have success also. Thanks for sharing and keep up the good work.

23rd Aug 2006, 12:52 AM
Great news you're doing so well. :)

The pictures are amazing, too.

23rd Aug 2006, 08:56 AM
Agreed you should document your experiment. :)

23rd Aug 2006, 05:52 PM
I'd like to increase the yields before I attempt to document things properly but in the meantime I will just post updates.

Today I lowered the water level again to see if any zoes had morphed and I managed to find five adults amongst all these...


When the zoes get close to morphing they start to swim more like an adult instead of floating vertically in the water. I only manage to identify the adults amongst this lot when they move as they loose their redish colour upon morphing and appear very translucent except for their eyes. I am gradually reducing the salinity by half each day with the young adults...


The freshwater is dripped in gradually by means of air lines which have venturi caps on the end. My improvised water tank for reducing salinity and water changes...




This is a pic of my Amano shrimp project...


The top two tanks on the right contain full strength sea water in the making ready for water changes. The top two tanks on the left are my 4th batch. The bottom right tank is the hatching tank...


The bottom middle tank is my 3rd batch whcih was pictured close up above and the other two tanks are empty. Once the minature adults have made the transition to freshwater I will move them to a suspended tank inside my planted tank where the main colony of Amano adults are...


25th Aug 2006, 06:02 PM
Hi guys!!

I know a guy here in Spain, who breed Amanos ussually in a regular planted tank. He doesn´t anything special, doesn´t get a great number of offsprings.

Greets from Spain

28th Aug 2006, 12:27 AM
Lo Xema,

Your friend probably has a shrimp which looks similar to Amanos but has its entire life cycle in freshwater.

To update things on my project I now have 71 adults sound and well in my grow out tank. Once they are transfered from full strength seawater they make rapid progress. They are so fast and strong they can crawl out of my turkey baster whilst I'm trying to suck them up, unbelievable :shocked:

It is really enjoyable to watch them grow.

9th Jan 2007, 02:00 PM
wow! Great job. I am getting ready to try breeding them as well. I hope I have as good as luck as you.

9th Jan 2007, 02:46 PM
Sax man thanks for sharing your experiment. It was very interesting. I got about 9 amanos and they are super active lil guys. they are about 3/4 of an inch not mature enough to breed I don't think.


Take care


10th Jan 2007, 12:39 PM
Wow, people like you are heros to me. I repect anyone who attempts this! Congratulations with your sucess and I wish you best of luck in your future attemps. More sucess with your amanos means less taken from their wild home!

Have you written up any documentation? Or still experamenting for better results?