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    • jayc
      How are you measuring pH that low? PH meter or liquid test kit? And is that colour normal on the shrimp pictured above? You said, this problem tank is about a year old. How old are your other tanks?
    • sdlTBfanUK
      Sorry to hear you are having a problem with one tank. Regarding the breeding stopping, that may be as it is winter with the taiwan bee shrimp where you are so I wouldn't worry about that unduly unless it carries on after winter? It onl seems to happen with Taiwan bees and I had this happen and have seen you tube videos and heard it happens with others (not everyone though oddly). The main problem tank, I can't see anything that looks a problem at first glance and as you are running other tanks the same way it must be something specific to the tank. Are all the tanks kept together in the same area? Have you put anything wood/new etc new in the tank that may have been contaminated with pesticides that is slowly poisoning the tank etc? Anything you can list as tank specific may help give us a clue. Are the vegetables you feed ORGANIC (though if you use the same for all the tanks it is unlikely to be that)? The simptoms do sound as though it may be some kind of toxic poisoning! The picture is a lovely shrimp and I can't see anything obviously wrong with it. I had a similar experience with my last shrimp tank so I know how frustrating it can be to pin point the problem! Simon
    • Myola
      For about 2 months now I've been losing one or two of my CRS every day. Tank has been running for about a year and initially everything was normal and they were breeding well. Then I started noticing the odd unexplained death, then it became more frequent, now it's every day. Parameters are: pH 5.5, GH 4, KH 0-1, Ammonia 0, Nitrite 0, Nitrate 5, TDS 120 Temp 22C. What's left of the colony are fed 2 - 3 times a week on a variety of quality foods including blanched zucchini, blanched mulberry leaves, HWA bacterium, frozen bloodworm and a few foods I've bought from breeders who make their own. They only get a tiny amount and it's usually gone within a couple of hours. Tank maintenance includes once weekly 10% water changes and the water I use is rainwater that I run through the RO and remineralised with GH+ liquid. I have two other caridina tanks - one with tang tigers who are breeding like mad. I never have deaths in that tank and it's got almost the same parameters just the GH is 5 instead of 4. The other tank is for blue bolts, mosuras, pandas and shadow pandas. I don't lose any shrimp in that tank either, BUT they aren't breeding. I think I'll have to start another thread for that issue though. I'm careful to clean any equipment used in one tank before I use it in another so that I'm not cross-contaminating. The shrimp seem perfectly normal until they fall over and die. They did stop breeding a couple of months ago so my colony is getting smaller by the day. The tank has the usual shrimpy stuff - IAL, alder cones, cholla wood. Substrate is Amazonia II. Below is a photo of one of today's victims. I have a video of it in the throes of dying too, but can't seem to upload it. It just shows the shrimp on its back and its little legs kind of spasming. Is anyone able give me any idea what my shrimp are succumbing to? Muscular necrosis perhaps? Thanks in advance.
    • chopstxnrice
      Thanks everyone for the replies! Yes I just started using remineralization about a week ago since I thought maybe the shrimp weren't getting the minerals they need and thus were dying. For the first month or so, I was using half deionized water half tap water. I checked my DI water and it's pH 7 kh 0 gh maybe 1. Perhaps I was shocking my shrimp with water changes. I'm going to try replacing my current water with pure DI water ~20% at a time and recheck. Is it possible something in my tank is causing high gh and pH?  I do have a zero water filter, but the filters are so expensive 🤣 
    • Crabby
      I think they mentioned they were already using distilled water though. I think in that case it's just too much remineralisation.
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