I'm back & keeping 'em fingers wet,
Ronnie Lee





Argh! Just lost 2 auras! 1 yesterday and another this morning.
I wonder if it's because they were very new stock and are marked for death already from the shipping, or is my tank's pH too low? 5.8-6

That's tiger shrimp's range of pH???

Aura blue shrimps are not CRS species..!
they tend to do better in higher ph.
keeping them in Ph lower than 6 is like putting CRS in Ph higher than 7
Within the first 2 days I also had a couple of deaths, but nothing since then.. my pH is 5.5 - 5.7 (depending on lights on/off)
I think your friend has a different type of blue shrimps and not aura blue.. Aura blue is the same family as CRS (Caridina). Also when the GC shipment came in, I happened to be there and tested the water that it came with in the bags. pH was 6.3ish and TDS was 150-160ish (cannot remember the exact figure). This shipment came straight from the Fu Shrimp Farm that first discovered, bred and distributed this shrimp world wide..
Also, bro Avex has managed to breed these shrimps under CRS conditions and so has a couple of my friends..
Just lost another cherry cull that had been doing fine for the last few weeks. I think I found a connection. There are 2 molted shells in the aura partition and 1 in the dead cherry's. They most likely died after molting.
Low pH and low TDS (110 now) is the likely culprit.
Time to dose more TDS up and change some water to bring the pH up to 6. Without their old shells, and before the new shell can form, they probably had problem regulating their osmotic balance and pH.
My TDS is 130, and I see regular molting in my tanks.. no deaths attributed to them..
















Currently have a new batch this time round in much lower condition Crs 1 week past hmm molt after I wc still looking good although their colour is pale blue.
Current parameter is as follow
Ph is 5.8-6.0
Gh is 3-4
Kh is 0
Tds is 120 ppm
Temp is 24
Monitoring condition



I had 6 of the new batch since Thursday and lost none. My PH is 6.8 but medium CO2 injection which drops PH to around 6.2 at the end of the photo period. TDS around 120 and Zero KH and 3/4 GH.
My 4 old Batch (around 2 months plus) is now very deep blue compared to this new batch. But then again I recalled my older batch was not as blue as they are now. So maybe they take awhile show show their real colours.








does aura blue cross breed with crs or cherry?
We are all sharing info bro. No need to worry. I think there's no right and wrong info at the moment.
I just took a more updated check. pH was 6 and TDS about 110. I had just increased TDS to 125 today.
I guess I bought the aura blues the day after the shipment arrived, so probably should expect a few deaths.
The confusion, I believe, stems from individual's definition of "condition" and not everybody, I think, keep their Cherry at pH7. When I had mine many moons ago (and they were breeding like rabbits, mind you), they were kept between pH6.2~6.5 and likewise now for some Fire Reds, which I understand has Cherry lineage.
I don't have any Aura Blues in my personal tanks but last I know, the water in AB's tanks at GC is between 6.5~6.9 and hardly any shipping related casualty. IIRC, there was a little sticker for water parameters at one of AB's tank. Perhaps you might want to have a look at it again.
I'm back & keeping 'em fingers wet,
Ronnie Lee
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