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I think it is moulting related issues as well based on that picture. At least we don't have the fish mangling the shrimp, so we can diagnose it properly. Thanks for moving them into a breeder box, even though it's a pain catching them. If those stone have been removed, the water parameters should start improving. But the symptoms with the shrimps will continue for a big longer. I know you don't have RO water yet, but have you done a water change since removing the stones? Even with your tap water parameters, it should help a little with moving the tank's water parameters in the right direction. Canberra is about to get some rain on Friday. Maybe set some buckets out to collect some rain water and use that for water change. Simon also has a good point with temps. We are in winter here, so moving temps down to 22-23 should not be a problem. I keep my CPDs at 23degC. So your's should acclimate well to that temp too. Plus it saves on electricity.

Sorry to hear you are still having this problem. I think it is a molting related issue, and the water isn't quite right if they are trying to get out. The trouble with tap water is you don't know what is in it so you will be better off slowly transitioning to RO remineralised when you get the new unit as that will be ideal parameters always - tap water can change as well from time to time and you won't know. Going back to the original post, the parameters are only just acceptable but out of 'sync' a bit, ie KH uppermost limit, GH lowermost limit etc. I don't know how hot it is where you are but if you can get that temperature down to 22-23 that would be better as well as again, you were at the uppermost limit! I hope you get the equipment before all the shrimps die off! Simon

I asked my supplier and he said his supplier would not let him know if they were wild or bred. when I did receive them 2 days ago, the water they were in had a tds of 275 and the ph was 6.0. The temp was 14c my tank is at ph 6.8 temp 20c and tds of 250. I asked my supplier and he said this is fine for them. However everything I’ve read tells me otherwise. tonight I filmed one of them eating an algae wafer I dropped in for a few small plecos I have in the tank. All the others are loving the drift wood and hair algae Eating the biofilm. They seam to be looking well at this point so fingers crossed I guess. That would be amazing crabby. It’s so hard to find any info on them.

Sulawesi shrimps actually do interbreed. Of course, I didn't know this before I got them. I did a shipment of 500 shrimps last year around november 2019. Most of the wild are probably dead now. I have all F1 and F2. I had at least 6 types shipped to me, unfortunately, I lost all the harlequin (female), I have have only 2 males left. The types I have are yellow cheeks, yellow nose, cardinal, harlequin, tigris, red orchid and redline. Out of at least 300 shrimps, I have seen about 3 new variations: I have found only 1 orange eye cardinal shrimp, a few redline-carinal hybrids, and only 2 cardina-red cheek hybrid (yellow dots instead of the normal white). I didn't attach a redline hybrid since I can't find a pic or probably haven't taken a pic of it but I've seen 2 types of them. One where the lines are golden like which looks better than the original white line. I had a few pregnant harlequin as you can see above but they all eventually died. I think from temperature or water quality issues.

Thank you both, Yep I've lowered my heater setting to 24C (which should give me 23C). Not sure why I had it up at 26C in the first place, i think because my thermometers designates 25/26 as a green spot which i associated with being ideal but a quick google search would've told me otherwise. The stones have been removed and cattapa leaves added but i havent done a water change yet as I had just done one a few days ago but I will do a small one tomorrow to begin that transition to a lower PH.

My oldest tank has only ever had red cherry shrimp in it and I have been very lazy about culling from the start. It probably is about 5 years old now and the majority of the shrimp are clear/brown wild types so even keeping one type/colour shrimp (neocaridina) will produce wilds over time so keeping on top of culling is recommended, don't assume 1 colour will just be easy/safe to keep the colour good though! Simon

Woah... that's a big ol' machrobrachium. It's a real shame pet store employees are so commonly misinformed. Glad you've learnt from your mistake though! Definitely won't happen again I'm sure - I've had similar problems, but it all worked out in the end for me, and I'm sure it will for you too.

My lfs stocks them regularly now, as well as typus shrimp (very expensive, but super low/rare stock so fair enough); I could see if I can use them to locate a hobbyist doing well?

Any idea what it was crossed with?

Welcome Adam. Glad to have you here. Thanks for taking the time to introduce yourself. I guess you have found out the hard way not to trust everything the aquarium shop tells you. The moment you said "Giant" shrimp, I knew it would not have ended well. What you have/had there is a Macrobrachium of some sort. They are predatory and very territorial, as you have found out. We have quite a few members from the US. Maybe they can help you out with a small clipping of moss in the mail. Come one SKFA family, help a brudda out!

Im from california. The first picture is a hybrid. Cardinal with a yellow cheek. A normal.cardinal has white dots with white gloves. The hybrid replaces every white with yellow.

Would be interesting to see Sulawesi hybrids, if you can get a picture or two. Where are you from @maximai?

Do you know if they were wild caught or aquarium bred? If they are wild caught, it will be as hard as everything you have read.

Its summer so No1 question is the temp. High temperature [emoji2410] decrease oxygen and stuns plant growth. Try some blanched veggies. Στάλθηκε από το Mi A3 μου χρησιμοποιώντας Tapatalk

@sdlTBfanUK Thank you so much for the thoughtful reply! The large shrimp (I bought 2 of them, and the larger one actually killed and ate the other one the first night) look something like a large freshwater prawn (long claws, etc.). I attached a picture I took of the monster before I gave him back to the store! The biggest issue I'm having (in my area of Michigan) is that no stores carry moss of any type (java, Flame, Christmas, Phoenix, etc.) due to shipping issues with the pandemic. I really want my tank to be a thriving environment, so my hope is that I can find some local folks that have mosses I can purchase. I've included a picture of my current setup (not including driftwood hiding spots and Indian Almost leaves, as I'd like to keep the water clear until I'm happy with the design). Hopefully I'll be able to get advice as well!

Well, I am a bit unhappy the baby shrimp survival is bad (this time around). During the first batch of babies back in February, I would often see them grazing along the walls. Now I really don't see that anymore, probably due to less stuff growing there. I agree with your observations of tanks changing with time, although I have never witnessed BBA myself. But I think those pictures I see of tanks with "wall of algae" and shrimps grazing on the sponge filter are old tanks.

I dose miniscule amounts of iron since my tank is only a 10 gallon, but yeah I guess depending on how everything goes now that ive stopped dosing, I'll know whether I really need iron or not. So do you think I should dose potassium to help with the plants? I see Flourish contains "Potash" K20 not sure if thats the same thing. Alright I've moved the 5 I could see and catch into the breeder box. I'm considering getting an RO/DI unit as well. I've thought about it before, but prior searches yielded many results and the seemingly technical nature of it put me off. Figured may as well ask here. Im thinking of this unit to connect to my outdoor garden tap: https://water-filter-sentry.com.au/products/reverse-osmosis-ro-water-filters-marine-fish-rodi-resin-filter-hro-3-d?utm_campaign=gs-2019-09-19&utm_source=google&utm_medium=smart_campaign&gclid=Cj0KCQjwgo_5BRDuARIsADDEntSmpU9rSLdQ2fDbQzsMUcSKYw9Nul47dSE_d1LBYGvG8jNMGJSN0LYaAqEZEALw_wcB Will this work? Cheers

So quick update: I think I'm about to lose another shrimp, this time in the breeder box that I've moved them in. This male shrimp I noticed was swimming oddly yesterday (kind of lazily, even upside down at points) but then would also resume acting normally. Anyways today I noticed he was standing still, so I gave him a little nudge with a squirt from a pippette and he just fell on his side, didn't react at all. In the picture you can clearly see the "white ring of death" around him. He's still alive though as every now and then I can see him fan his legs. Not sure what I can do for him... Also I noticed that the other shrimp all huddle at the breeder box outtake (where've plugged some filter foam to stop cpd fry from swimming out), every now and then one or two of them would venture away. Although at night they definitely are out and about (1 shrimp even managed to escape the box somehow and back into the main tank. She seems to be the most active one, so i've let her be.) Not sure if these are symptoms of anything in particular. TDS and PH pen should come tomorrow. I've added cattapa leaves to the tank.