nicpapa

a video with shrimp tanks

Going to nature... in 180lt
 
Tanks is a ~week,  its not ready yet, but you can see a small video .
 
 

update of shrimp room
 
 

Wow!! Your tanks are quite nice. So many crystals! Thanks for sharing; looking good.

A video that confirm that temp dont playes role...
cbs tanks is room temp without heat, about 16-17,c  crs is with a heater at 21-22c...
Both tanks start in the same time of yeart breeding.. 
I take a video  i catch them both tank male dancing. :)
 
 
 

I have a heater vs non heater and both tanks are still the same. Breeding slow this winter.

Hello there.
How is your breeding routines going?
it have been years now , that shirmps dont breed in winter, i keep aroud 20 tanks.
Shrimps stop breeding from novemer to march.
Temp no plays role,  i keep tanks without heat and tanks with heat , also some tanks with more light and some wiht less.
I saw crs breeding in 15c,,,, and in another tank with 22 c from 200-300 srhimps no one breeding with same light.
After a  lot of research the only think that it play roles in winter is barometric presure.
The crazy is that a friend living here , he saw some breeding in winter.
The only think its in my mind is that my shrimp room dont have a good  insulation so barometric presure is the same as outside...
In house with a good insulation  aircodition can change the barometric presure, and keep it stable .
What is your opinion about breeding in winter ?
 
 
 

The place i have them dont have lot of day light.
You can try to put more lights , but i never  saw somethin happens.
 
 

Barometric pressure must have something to do with this.
i was reading a chart wiht hPa .
Below is months and the average values of the months
This is from my place for year 2018.
 
1  1015.4
2  1014.1
3  1013.4
4  1011.8
5  1011.6
6  1009.8
7  1007.0
8  1007.5
9  1011.4
10  1011.6
11  1016.4
12  1015.6
 
You can see that in months  wth the red ,shrimps dont breed
So it must have some reration with hpa.
So how can we trick them to breed?

I cant prove it..
Do you know if aircodition can change a litle the pressure?
I saw breeder, use it all the winter.
 
The only think i can do it playing wiht lights again.
I add in one tank more ligh , and more hours.
In the past i try and 14hours.. but nothing happens.
 
 

I change my lights to 13 hours from 8 hours i had them
I know about the plants how react to temp and lights.
If we talk about heat at March April when they became to breed  , temp dont play  a role, its the same temp when you use heater..
I will try to make a comparison with day lights when they stop breed and when they breed.
Your temp is fine with shrimps, my shrimp room , because i dont leave there goes to 13-14c  ~ 55F
I cant heat all the tanks, its 20 tanks , i  use heaters to 10 tanks keeping temp 21-22c and sullawesi 26c.
 
 
 

I dont know if barometric pressure  plays role but its play for some  fish, and i read it lot in the forums, also in a paper for sea shrimps , culture in ponds , i read they measure for 6 months all the data , also have data for barometric pressure.
Oxygen is beter in cold water than hot water that is true.
Temps affect shrimp grow slower and leave more.
Yes that i was thinking , temp fluctuation is more in summer .
Maybe they dont like stable temp?   haha 😀
If they dont breed in winter why to use heaters?
 
I never loose a shrimp from cold water, i made a test in the previous year with crs.
Now also have tanks without heater and temp goes 13-14c in the waters.
Snowballs and neos breed in those temps not a lot but you can see pregrants srhimps.
Plants still grow but slower.
 
I made a small video to see activity in 14 c vs 22c .
Srhimps looks fine .
Cbs is without a heat, then crs tank have a heat to22c and the other tanks crs dont have a heat, and in this tank i saw pregrand , also in tanks without heaters had babies.
Sorry for the quality of the video its from mine phone.
 
 

Hello there .
Can you say how many hours of  daylight your place have  this period, and when your  lights  time on and off routine?
Mine temp is higher than yours.
Maybe something in light period ?
Do you have a windows in you shrimp room?
Aslo do you know your barometric pressure of the year, like i wrote it above?
Crazy qusetions i know.
 

Some results...
Shrimps start breeding in some tanks.
I didnt change anything of my routines and nothing changes in lights and temps.
The fisrt tank was tangerine tigers, there are an explosiong with female caring eggs.
Then taiwan pinto crs and other caridina .
I dont have any problem with neocaridina tanks.
The weird is that crs  and cbs shrimps start breeding in the same time.
Crs is with 22c and cbs in room temp about 16c, also in another crs tank with room temp start the same period.
So am i crazy , what parameter iam missing?

I just wanted to update on my shrimp room breeding this winter, since I last posted we have since had some severe cold weather in late January and many of my tanks have slowed down or completely stopped breeding for the last month. Prior to January I did not experience severe cold weather as we have in the last 5-6 weeks. I suspect the sudden swing in temps has something to do with it. My normally prolific tanks are slow. Since it is already March I am anticipating that they should get going again by April (fingers crossed)  Will update when they get going again!

One of my CRS got berried a couple of weeks ago in the middle of a huge snowstorm here in Ontario Canada.  Not sure what the barometric pressure was but the water temp is at a constant 20C all year round.  

There are very few published papers on neo/caridina breeding. One of the ones that I've ran across mentions the affects of temperature and very little on photo period, being it was at a constant 12/12 schedule throughout the entire study. This was for the RCS too, btw. Crystals and other bee shrimp have even fewer studies and ALOT of speculation printed on the web. We do know that metabolism and growth slow down in cooler waters as does reproduction. So temperature is a big one. Not so sure about light myself being as I keep a shorter photo period than most at 7-8 hours of light. I have shrimp berried right now but these are hybrids (tibees and galaxy pintos). My PRL's aren't doing anything in these unheated tanks. Temps are between 62-65° F for the last month or so. I'm chalking it up to temperature. What these temperature thresholds are for each given species/sub-species is hard to say but I'd be willing to guess at 68°, my PRLs will be getting busy.  
 
 It may very well be speculation to say the sex ratio of offspring is also affected by temperature for these particular species. From a logical standpoint, it makes sense that there will be higher percentages of female offspring in cooler water where food sources are abundant in early Spring but this is with wild shrimp, not ornamental shrimp that have been selectively bred for many generations. However, there are reports on the internet of breeders seeing a higher percentage of female offspring during winter breedings. Hardly concrete evidence but worth observing in our own tanks. 
 
 

Hello there .
Can you say how many hours of  daylight your place have  this period, and when your  lights  time on and off routine?
Mine temp is higher than yours.
Maybe something in light period ?
Do you have a windows in you shrimp room?
Aslo do you know your barometric pressure of the year, like i wrote it above?
Crazy qusetions i know.
 

I dont know if barometric pressure  plays role but its play for some  fish, and i read it lot in the forums, also in a paper for sea shrimps , culture in ponds , i read they measure for 6 months all the data , also have data for barometric pressure.
Oxygen is beter in cold water than hot water that is true.
Temps affect shrimp grow slower and leave more.
Yes that i was thinking , temp fluctuation is more in summer .
Maybe they dont like stable temp?   haha 😀
If they dont breed in winter why to use heaters?
 
I never loose a shrimp from cold water, i made a test in the previous year with crs.
Now also have tanks without heater and temp goes 13-14c in the waters.
Snowballs and neos breed in those temps not a lot but you can see pregrants srhimps.
Plants still grow but slower.
 
I made a small video to see activity in 14 c vs 22c .
Srhimps looks fine .
Cbs is without a heat, then crs tank have a heat to22c and the other tanks crs dont have a heat, and in this tank i saw pregrand , also in tanks without heaters had babies.
Sorry for the quality of the video its from mine phone.
 
 

@nicpapa This is indeed very interesting topic. I have seen many people talk about slow breeding or no breeding in winter or cold season. Most people hypothesized that this is caused by atmospheric pressure change in cold season. I do read publish papers too (high five!!). In fact, most of my info about shrimps are from these. I stopped inquiring from other shrimpers due to inconsistency and lack of fundamentals. Most of the things that catch my attention, I do take with a grain of salt and then inquire principles and understanding first before I take them seriously. My advice, however, is be careful on interpreting publish papers. As you have mentioned, you got these information from se shrimps and culture in ponds. See here that volume and depth are not identical to regular aquariums. But I am aware that these small change in atmospheric pressure can affect dwarf shrimps due to their biology and size.
 
To be fair, I only have one shrimp tank besides my other freshwater aquarium (for now, I really want to focus on just one shrimp tank). I don't have much observations as most of you with multiple tanks do so I can't speculate more than this. However, I am very thankful for these observations because I can use them on my own personal shrimp care. I am also happy @nicpapa and @Shrimp Life for producing such speculations using combinations of observations and principles/fundamentals.
 

I have 1 window but I think its helping that I am leaving the lights on longer, mimicking the long daylight of spring and summer.  Normally our sun rises at 8am and sets at 430pm in winter. I have the lights on from 8am-8pm . The barometric pressure today is 1016.2 in my town
 

Its a very interesting topic. I normally experience only a slow down in breeding and not a complete stop. Last year only 1 tank out of 12 stopped breeding completely. The others still bred but just not at the same rate as they do in spring and summer, but its not a huge breeding decline. This winter we have much milder temps then last year. out of 12 tanks, everyone is breeding except for 1 tank. I keep my home at 70 degrees and lights are on for 12 hours a day. I think light cycle may play a part because I intentionally leave my lights on longer to try to mimic spring/summer daylight hours and I do notice a difference. There is nothing scientific to substantiate any of this but I am happy with my winter breeding, I have as many berried females right now as I do in spring (Neos and Caridina).

Hello there.
How is your breeding routines going?
it have been years now , that shirmps dont breed in winter, i keep aroud 20 tanks.
Shrimps stop breeding from novemer to march.
Temp no plays role,  i keep tanks without heat and tanks with heat , also some tanks with more light and some wiht less.
I saw crs breeding in 15c,,,, and in another tank with 22 c from 200-300 srhimps no one breeding with same light.
After a  lot of research the only think that it play roles in winter is barometric presure.
The crazy is that a friend living here , he saw some breeding in winter.
The only think its in my mind is that my shrimp room dont have a good  insulation so barometric presure is the same as outside...
In house with a good insulation  aircodition can change the barometric presure, and keep it stable .
What is your opinion about breeding in winter ?
 
 
 

Hi there.
For crs akadama substrate its very good.
I have very good results.
for taiwan pintos, iam trying glascarten enviroment soil , and shrimp king soil for better result.
Akadama works for them but  they grow slowly.
Its fisrt time i change from akadama to another soil so i dont have a good comparison yet.
 
 

Α small video with shrimp tanks