Why Won't My Red Cherry Shrimp Breed?

[RossC]

Had my red cherry shrimp for about 2-3 months, as far as I can tell I've got 1 male and 3 females. All have deep colours and seem fine. The tank is planted and has redmoor wood and rocks with a gravel substrate. Why are they not breeding? I check the females for eggs regularly but they are never carrying.

Water parameters:
Ammonia: 0ppm
Nitrite: 0ppm
Nitrate: 20-40ppm
pH: 7.6

EDIT:
Temperature is 24*C / 78*F

 

[mike455555]

Had my red cherry shrimp for about 2-3 months, as far as I can tell I've got 1 male and 3 females. All have deep colours and seem fine. The tank is planted and has redmoor wood and rocks with a gravel substrate. Why are they not breeding? I check the females for eggs regularly but they are never carrying.

Water parameters:
Ammonia: 0ppm
Nitrite: 0ppm
Nitrate: 20-40ppm
pH: 7.6

i had the same problem. until i moved them into a bigger tank but also there was a temp increase from 1 tank to the other it might be that

 

[RossC]

My temp at the moment is 24*c is that ideal?

 

[mike455555]

My temp at the moment is 24*c is that ideal?

i'll measure what it is in my tank. in the first it was 21*C and in there new tank its 31... thats actually a little high for my liking but the females have eggs under them now. and dident at the lower temp.

mine were not breeding for 2-3 months until i moved tanks 20L to 70L and with the increase of heat. it could be either of them but the females were carrying eggs within a week of the new tank...

 

[RossC]

31 seems a little high? The bloke at the store said they breed in they're tanks which where the same temp as mine but smaller in size and not as many plants. I dunno about the pH. At the moment they're in a 50L, I have got some in my 95L but they look pretty young and I can't see them half the time so I can't really compare

 

[mike455555]

31 is a little high i'll take it down to the 23-6 soon i don't know about PH either i cant think it would make that bigger difference. do they have saddle's?

 

[RossC]

Can't see as they're fully opaque

 

[mike455555]

Can't see as they're fully opaque

are you sure you'v sexed them right? and there not all female? i know on a few of mine its hard to tell

 

[Baccus]

Cherry shrimp will tolerate temps over 30 degrees cel but its not ideal, they already have a quick life cycle and added heat seems to speed it up.