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A Guide To Crystal Red Shrimp

Jaseon

Member
Joined
10 Jan 2021
Messages
374
Location
Wales
I do the water change with remineralised RO to a TDS of 130 but I top up with 'pure' RO.
I'm still in the mode of checking the TDS daily and it's stable at 150, the GH stays at 6 and the KH is negligible.
What makes the TDS jump to 150?
 

Kelvin12

Member
Joined
16 Nov 2020
Messages
165
Location
NSW Australia
My TDS readings are lower GH are similar but KH are 0. Temperatures are pretty high at this time of the year and I am dropping in large ice cubes to try to keep them down in bigger tanks but so far the CRS and PRL are staying reasonable.
 

erwin123

Member
Joined
4 Mar 2021
Messages
830
Location
Singapore
I'm starting my cardinia journey with regular bee shrimp first (i.e. the 'normal' black striped version) as they are supposedly less sensitive than CRS (and cost a lot less, at least the low grade ones I got). When I measured the TDS of the water they came with, it was 162.
 

MichaelJ

Member
Joined
9 Feb 2021
Messages
1,691
Location
Minnesota, USA
I'm starting my cardinia journey with regular bee shrimp first (i.e. the 'normal' black striped version) as they are supposedly less sensitive than CRS (and cost a lot less, at least the low grade ones I got). When I measured the TDS of the water they came with, it was 162.
Hi @erwin123 Congrats! The breeder I will get mine from is in the 150-160 ppm range. So 162 seems fine. Of course, your tank needs to be in the same range as well. Drip acclimate for sure - but I am sure you did that.

Cheers,
Michael
 

The_storm

Member
Joined
26 Jun 2016
Messages
57
Location
Bucks
After 6 months of trying to get the CRS to breed, they now won't stop. I've put the issue down to a heater that fluctuated wildly.
Since replacing it with an Eheim thermocontrol, the temperature has remained between 21 and 21.5. The tank has new shrimplets once a week for the last 3 weeks. Stability is the key, via effective monitoring of all the relevant parameters.
 

Wookii

Member
Joined
13 Nov 2019
Messages
3,011
Location
Nottingham
After 6 months of trying to get the CRS to breed, they now won't stop. I've put the issue down to a heater that fluctuated wildly.
Since replacing it with an Eheim thermocontrol, the temperature has remained between 21 and 21.5. The tank has new shrimplets once a week for the last 3 weeks. Stability is the key, via effective monitoring of all the relevant parameters.

You’re doing better than me then - my CBS still haven’t bred. Not sure where I’m going wrong on this one. What do you feed yours CRS?
 

The_storm

Member
Joined
26 Jun 2016
Messages
57
Location
Bucks
Hi. They took ages and I couldn't see the wood for the trees but I got the parameters right and kept it, without messing and chasing.
I feed them a variety of foods, including some home made.
They get bacter ae and a nettle/dry bloodworm/fish food/algae wafer dust I've milled down, as well as dehydrated nettle (fresh blanched when in season) a mixture of dried leaves and snowflake. I vary this but freed them tiny amounts.
Best advice? Run a daily log of pH/TDS and temperature, do this several times a day to ensure your parameters are constant.
 

Kelvin12

Member
Joined
16 Nov 2020
Messages
165
Location
NSW Australia
Storm can you post up a photo of stinging nettle. Not sure if its the same one we call stinging nettle here in AU.
Good mix of foods. Amazing how different tanks of the same shrimp won't even look at the same foods.
 

The_storm

Member
Joined
26 Jun 2016
Messages
57
Location
Bucks
Stinging nettle (Urtica dioica)
 

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