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I have been having a slow die off of my CRS over the last few of months. I am fairly new to this so I am not sure how to deal with this.
Substrate: Fluval shrimp stratum (buffered to ~6.5)
Current GH: 5
Temperature: 22 C
Ammonia, nitrates, nitrites: ~0 ppm
Bit of background:
I started with 12 juvenile shrimp that I bought off a breeder in February this year. I started off using tap water (treated) with no problems. I got my first two berried females at the beginning of May. To this point I had had no deaths. At the beginning of June I had a couple (2) of deaths that I am still not sure the cause of. GH was low (2) at this time as I hadn't been testing for it, so that may have been the cause. Following those deaths I got some shrimp specific gh booster (saltyshrimp mineral GH+) and things seemed to recover. Berried females' eggs hatched at the beginning of June. One female became berried again in July.
Now the tank was a bit overgrown at this stage so it was hard to keep tabs on the shrimp. I didn't notice any more deaths until a recent move. Before moving the tank I removed a lot of the overgrown plants. Once getting it to the new place I only saw 6 shrimp (2 females, 4 male) so it seems there were a few lost between June and August. There was one small shrimp in there as well (seems the only baby who survived).
Since the move there was one death shortly after getting the tank set up. I chalked this one up to stress from the move. I haven't seen the baby shrimp since the second or so day after the move so I suspect that it has died as well. More recently I had a female die (at least I think it asa female). See the first picture below. I noticed one day that she was behaving strangely. My shrimp haven't gone up to ride the floating frogbit since the first month I had them but a few days ago I noticed one up there. I went and had a look and she was just standing there. I also noticed that she seemed to be missing her long antennae. I snapped the below photo and went to work. When I got home, she was still there in the exact same spot. A few hours later, she was on the ground lying on her side. I poked at her and it was clear she was almost dead. Once I was sure she was dead, I removed her immediately. I did a test of the water and all parameters were good except pH which was high (around 7.2). Seems my buffered substrate had run out of buffering capacity due to the use of high PH tap water. I added some fresh substrate and did a water change with RO water and the pH is back to 6.5. Water change was done over the course of the day 1 litre at a time to avoid rapid swings in parameters.
My berried female was still doing well and her eggs hatched two days ago. She was active and seemed healthy the next day. Today I noticed her in the corner tipped over and not moving much. I snapped the below photo. I know the colour of the internal organs are meant to be a sign of bacterial infection, but I don't know what to really look for in a CRS. The colour in the second photo below looks odd to me. All limbs and antennae intact.
EDIT: Just checked and the shrimp is dead. Anything I can do to try to determine the cause before I dispose of it?
I am just at a loss at this stage. I feel like a bad shrimp keeper and I don't know what else to do.
Does this look/sound like a bacterial infection to you? What can I do to fix this?
Thanks for your help and let me know if you need any more info!
Green shrimp I looked at one of my green Neocaridina under the microscope, and I'm trying to determine if all green shrimp are like this... or just mine. Any insight from other green or jade shrimp keepers?
There have been a few rumblings from Bob, Kiz and I about a new shrimp to the hobby, and possibly a new shrimp to science , which for the moment we will call Caridina sp. 'Malanda'.
Thanks to Kiz for putting up some excellent pics of the shrimp themselves, which can be found here:
Having kept both the Caridina sp. Malanda and the shrimp collected from Barney Springs (another possibly unidentified shrimp which we are calling Caridina sp. "Barney Springs", also rare in the hobby), they are quite similar in size, shape and colour and, in my opinion, could likely be the same species. These are currently with Ura for taxonomy so we will have some more info on taxonomy soon. Thanks @Ura.
Anyway this is a report from where the shrimp were found (May, 2015).
Water parameters were:
pH: 7.4 - Water sample was taken from within the riffles which would tend to cause CO2 to gas off and therefore boost pH.
KH: < 10 ppm
GH: < 20 ppm
Short video - excuse the rainy conditions
We found the shrimp only in one specific location - just upstream of where Bob is standing, in the long grass at the edge of the stream. We sampled further upstream, across the other side of the creek and downstream, and found none, including in areas where the grass was growing in a similar manner to where we did find them.
This is just a shot from further upstream, around the corner from the above shot.
The creekbed within the riffles was rock, mostly covered in algae and some silt. there were no shrimp in this area.
The shrimp were found hard in against the bank, right at the interface between the water, the bank and the grass hanging into the water.
The shrimp were clearly coloured by sex - females were reddish, males blue. Note the large eggs for this species = easy to breed.
Male - Top
Female - Bottom
We also found a species of rainbowfish in the eddies at the base of the riffles, a species of gudgeon, some sponges growing on the bedrock in the riffles and some macros (Macrobrachium sp.). None were in the same habitat as the Malanda shrimp.
This macro had a parasite attached - nasty!
I have decided to get a few more shrimp to create more tanks similar to the one I had a few years back in the video below.
This 4 foot tank had a lot of corys and I had a population explosion of shrimps. Currently, I set one up with yellow cherries and another with orange rillis. Going to be looking for more shrimp when it starts to warm up a bit in Canberra.
Hey hey hey,
Hows things everyone?
Ive been getting right back into shrimp in a major way now, Had a few days spare so I got around to re-sealing an old tank I had laying around and building a quick stand for it.
This is being setup as a shrimp/ low tech planted mostly somewhere for all my anubias to live I have some rather large varieties now, just some lava rock as the main hardscape, then course white sand, lots of ferns etc.
standard aquaone heater, and the filter I'm running is an aquaone 1050 series ii. It's quite new I got it on the cheap ages ago and it's sat there lol.
The tank was already drilled through the bottom panel from an older project, so I decided to run a closed plumbing system which seems to have stopped the notorious dead spots you sometimes get in tanks bigger then 4ft. And it's working great with only a relatively small filter.
Probably Going to end up being for my chameleons and or something else. Loving life right now, even though I didn't sleep and it's water change day today haha