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-   -   Cady's Amano Breeding Adventure (https://www.aquaticplantcentral.com/forumapc/journals/144755-cadys-amano-breeding-adventure.html)

CadyMai 08-02-2020 08:48 AM

Cady's Amano Breeding Adventure
 
After much research and fascination, I've decided to attempt breeding amanos! There is still very little information on breeding them on the internet anywhere, and most of it isn't very specific. After finding out that most amano shrimp are wild caught (with a few exceptions), I was honestly shocked. I was thinking about trying a brackish tank anyways, so why don't we start this now.

The overall plan is simple. It's just about refining the paramaters for the larvae. Right now, I'm acclimating a set of plants in a standard 10 gallon tank to slightly higher levels of salt than they're used to. I didn't know that so many plants could survive in brackish water! Right now it's stocked with:
Anubias coffeefolia
Crypt Balansae
Java fern
Leopard Val
Dwarf Saggiteria.

I'm interested to see how these do in the brackish environment. I also intend to get Java moss as well as bacopa caroliniana to more heavily plant this tank up.

At the moment, the paramaters aren't stable as any amount of cycling in the sponge filter was killed by the slow addition of salt. I currently add about a 2 tablespoons per day to slowly up the salinity. My goal at this moment in time is to reach a specific gravity of 1.013. This is a good middle ground, as it can be easily raised and lowered to suit the needs of the larvae.

The breeding stock of amanos (I believe there are 10?) currently live in my 20gal long. They've probably been in there for a month, and have adapted wonderfully. I haven't noticed any berried females as of yet, but I'm watching them very closely. I have a feeling I'm going to loose a few batches of babies as I narrow down their requirements, but as long as the mothers survive, I'm a happy camper.

The overall plan for breeding them is to allow the adults in the main tank to breed. Supposedly the gestation period for amanos is 5-6 weeks, so for that period of time I will be closely monitoring the pregnant females. I'm going to assume for the sake of science that the gestation period is 6 weeks. After the fifth week, I will drip acclimate the mother shrimp very slowly to fit the parameters of the brackish tank. (I don't know exactly how I'm going to put the least amount of stress on them, as there is the possibility that they will stress and abort the young.) Amano shrimp go to brackish water to breed in the wild, so I'm hedging my bets and assuming that some salt isn't the end of the world, and that they can handle the salinity change. (What I could do if the salinity ends up being an issue for the mother shrimp is lowering the specific gravity very slightly for the period of time that she inhabits the tank from 1.013 to 1.011-1.010 ish. I don't believe this will be an issue though.) Once the mother shrimp is in the tank, I'll give her another week or so until she gives birth. From there I will remove her from the tank and acclimate her back to the fresh water from the main tank. Once the larvae are born, the fun is just getting started! Assuming the paramaters are perfect, they should flourish in the tank. I've read that they can eat brewers yeast as well as types of phytoplankton. I'm going to attempt the yeast first, but if that doesn't work I'll jump into culturing some plankton. From there it's just about raising up the young until they're old enough to sell!

Jeez louise man there's so much to do! I will update this journal whenever anything particularly interesting happens, but things atm are moving very slowly. The brackish tank needs to reach the ideal specific gravity *and* cycle, and the amanos need to breed for anything to move in project wise.

Please let me know if there are any flaws in my logic, as well as if you've ever bred amanos before and had any thoughts about how to improve my little experiment!

(I will link pics of the brackish tank. I'm aware it needs more plants, and I'm in the process of finding the perfect species. Lmk also if you know any other plants that can survive in brackish!

CadyMai 08-02-2020 08:51 AM

2 Attachment(s)
This was right after a big water change, as well as salt addition. That's why it's cloudy :3

CadyMai 08-02-2020 08:51 AM

They posted dumb. Sorry, I'm a newbie!

mistergreen 08-02-2020 10:16 AM

Re: Cady's Amano Breeding Adventure
 
There are a few breeding vids on youtube. You don't need to put the female in brackish water. In the wild, the female stay in freshwater, and the zoea swim downstream into the ocean.

In the video, one guy left the lights on 24/7 for algae grow for the zoea. Make sure to get a salt gravity level to see how much ocean salt to add.

CadyMai 08-02-2020 10:38 AM

Quote:

Originally Posted by mistergreen (Post 1008267)
There are a few breeding vids on youtube. You don't need to put the female in brackish water. In the wild, the female stay in freshwater, and the zoea swim downstream into the ocean.

In the video, one guy left the lights on 24/7 for algae grow for the zoea. Make sure to get a salt gravity level to see how much ocean salt to add.

Completely understandable, but if the larvae are left in fresh water, they will die. I see no way to remove them safely from the water column. This would mean that the best way to capture all of the the young is to place the mother directly in the brackish. If you had any thoughts about how to capture them, please let me know. This was the best option I could find.

mistergreen 08-02-2020 11:41 AM

Re: Cady's Amano Breeding Adventure
 
Zoea are attracted to light. Turn off all the lights and put a flash light up against the tank. They will collect toward the light. Siphon them with a turkey baster.

I remember people having success with water closer to ocean water than 'brackish'.
https://www.youtube.com/watch?v=NHDZyeVCm4c

CadyMai 08-03-2020 03:34 PM

Quote:

Originally Posted by mistergreen (Post 1008271)
Zoea are attracted to light. Turn off all the lights and put a flash light up against the tank. They will collect toward the light. Siphon them with a turkey baster.

I remember people having success with water closer to ocean water than 'brackish'.
https://www.youtube.com/watch?v=NHDZyeVCm4c

Interesting! I'll give this method a try. It would be significantly easier (as well as safer for the mother) to do it this way if it actually works!

neilshieh 08-03-2020 09:33 PM

Re: Cady's Amano Breeding Adventure
 
Interesting project! There's a guy in my local planted tank group SFBAAPS that keeps a journal on his amano breeding efforts and he's on F10 apparently. I didn't read through the entire journal but he's been able to successfully rear larvae in lower salinity water and is working towards being able to breed in freshwater. That said, I have visited a shop in Davis, CA where their water is ultra hard and the shop owner casually talked about how he's been able to breed amanos in freshwater with no problems. Not sure how credible the latter is, but I'll shoot you a message with a link to the journal. Might help out since he posts salinity levels and everything.

CadyMai 08-15-2020 10:50 AM

2 Attachment(s)
Okay wow, it's been a super short amount of time and a bit has happened. I've been busy, so my supervision of the tank has not been super close, and the amanos had a huge growth spurt while I was away. (I was still maintaining it, I just couldn't sit there mesmerized by it for 6 hours straight.) I had worried about the initial process of the females getting pregnant (or the lack of pregnancies that is). I had two concerns. Either I didn't have a male to fertilize the females, or they just weren't happy enough in my tank to breed.

Neither of these ended up being the case, as now I have a berried mother shrimp! The eggs are already nice and dark, but they're still small and undeveloped. So we're gonna be waiting a bit for them to be born! I noticed Friday, August 14th that she was berried after I fed my corydoras. This is another issue I've come up against. They only like the corydora food. I have tried to give them cucumber or things of the like, but they ignore it. Same with hikari brand shrimp specific food. (I should mention that I only feed hikari. It's never done me wrong.) I don't have a problem feeding them cory pellets, but they're starting to hijack the food from the corydoras. I have to feed kind of a lot. Is it a bad thing for them to eat the algae wafers?

I'm also working the salinity of the 10 gallon tank up. Right now the specific gravity is 1.01. I was previously trying to increase it much slower, but now that the female is pregant there's a lot more urgency behind not only getting the salinity to a good level, but also cycling the tank at said salinity level.

If any of you have brackish/salt tanks, I had a quick question. How much does the specific gravity have to change to wipe the cycled filter bacteria colonies? I know that there are different bacteria for fresh and salt water tanks, but considering that my salinity is increasing daily, am I wiping my colony every time? For instance, if I cycle my tank at 1.010 sg, and then raise it to 1.015 sg, is my cycle going to have to start over?

Thanks all! Will continue to share updates as things progress.

CadyMai 08-28-2020 12:52 PM

Re: Cady's Amano Breeding Adventure
 
I'M BACK AGAIN.
I feel as though there are two pregnant amanos now, so that's exciting! They've been eating the corydora pellets as time goes by and seem to be very happy on that food as well as the algae on the hardscape. They've been molting very well and are getting more bold. I often see them out in the tank, just calmly hanging out.

Not a super huge update, just wanted to poke my head in and say everyone is doing well.


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