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Welcome to SKFA. It's a Macrobrachium of some sort. Those claws give it away. But don't know which exact species of Macrobrachium. Might be able to narrow it down to which species if we knew where the shipment was from. Where are you from? Don't put this fella in a tank with other Neo Caridina or Caridina or Taiwan bee shrimps. It will eat those smaller shrimp.

Hey all! First of all, thanks for the add! I really appreciate it! I hope I am not breaking any rules by posting this in this thread, so if I am, please relocate this post to where it belongs!! So, about a week or so ago I got a blue crayfish from the local pet store, and they told me that this "Little Dude" (His name!) was sent along with that shipment in error and it wasn't identified, or at least the pet store didn't know what it was, or told me it was another type of crayfish. After his first molt (Just last night and the fastest to complete one yet) he is a different color, slightly bigger, and I don't think he is a crayfish at all. I am thinking he is a shrimp, but I am not sure. If someone could confirm this for me, and possibly even identify what species of shrimp it is, that would be amazing!! Please don't judge the dirty tank I have been working and then he molted so I haven't had a chance to clean it properly in a little bit. I appreciate the help!

Great news that everything seems to have settled down! When you do set up a new folter system, leave the old sponge in the tank for a couple of weeks while new one is running as it will be full of bacteria but the new one won't have any at the start etc!

Welcome! Would love to hear more about your setup andexperience so far. There is something very fascinating and relaxing about watching shrimp? My favourites are shrimp with blue so your shrimp would be one on my list. Hope everything is going well?

It's been awhile but things have been going ok. I got my water parameters back to around where it needs to be. KH back to 4 but I can't seem to increase GH past 5, even if I only add GH remineralizer back during a water change. Anyhow, the tank has been stable. I haven't seen many shrimp deaths or anything alarming. They are still consistently breeding. I do have to feed them much more aggressively, on a daily basis. I also started to add in mulberry and dandelion leaves for them to graze on every few days on top of the other foods. They are a bunch of hungry buggers. I need to swap to a more powerful filtration system than a sponge filter system. While the shrimp poop is awesome for growing my plants, the water has become dank and dark. I'm fine with tannins, but there are way too many particulates in the water. Going to swap to a mini canister filter system with a spin pipe to keep water flow low.. so things are going to get shook up a bit again, but hopefully it all stays stable.

Hello everyone my name is Daniel, I've been keeping tropical fish for over ten years. I've just recently become interested in keeping shrimp, so now I'm constantly watching 10 Shadow Pandas. Lol

Simon, Thanks for your input. I will recheck my water parameters. Don

Simon has highlighted something that is not right with your water parameters. You should not be getting detectable nitrites. The more important parameter to address as a priority is to reduce nitrite, the tank just needs to be cycled properly. You can try supplementing with beneficial bacteria. How big is the tank and the filter? A small tank and filter with lots of shrimp/fish can mean that there is not enough surface area for beneficial bacteria to grow and thus show signs of nitrite build up. The KH of your water is too high, likely due to the water being well water, which is usually filtered through sand, stone and material that release carbonates. As for reducing KH, you will have to change water sources, to something like rainwater or Reverse Osmosis. Don't use KH down chemicals, which will just introduce a whole different problem.

Welcome @Riffly, your project there sounds very interesting. Where are you from? It will be interesting to know how you cultivate zooplankton, as a number of shrimp species depend on that during their larvae phase (ie right after coming out of the egg). Would you mind sharing your experiences with obtaining enough plankton to raise shrimplets that depend on it? Amano shrimp and a couple of Australian natives (Darwin Algae shrimp) that could be bred in captivity if people have a reliable source of food for those early weeks in the shrimp's life. I have tried using chlorella : spirulina 50:50 mix to create a diy green water, but that has mixed results. Plankton + the green water would be more successful.

Welcome, and I hope you find your time on here as useful and pleasurable!

Hi everyone, I am a biologist who is breeding glass shrimps, riffle shrimps (one of my favourites), red claw, micro algae, zooplankton and a local endangered fish species (honey blue eye rainbows). I am doing private research into using algae/zooplankton as a sustainable food source for aquaculture and a food source for developing countries. My main focus right now is to breed riffle shrimps in large numbers as they are filter feeders and work well with my plankton systems. I look forward to contributing and learning from you all. cheers

The adults were in a cycled tank 3 to 5 weeks depending on when they were bought.

Lol yeah maybe 🤷https://www.natsfish.com/product/fish/other-fish/chameleon-ninja-shrimp-freshwater/

I wouldn't trust anyone from Wollongong getting it right with identification of Caridina sp. 'WA4'. 😆

I believe they are different, I bought some off a person in Wollongong, caridina sp wa4 and they look different to these especially the black and white ones maybe it might be an environment thing though or diet

That was my thought as well. Caridina sp. ‘WA 4’ or Chameleon shrimp or "Ninja Shrimp". They can change colour and are often found in the area Quek is in.

They survive well and one of the female red has belly full of eggs now. Will try and selectively breed them. Funny part is I can only find them in 2 sqm spot in the wild under a well shade tree.

Likely ninja shrimp, caridina serratirostris nice specimens you have ☺️ I've been looking for some myself.

Those shrimp are stunning, I hope they survive in your aquarium ok and they keep their colouring! No idea what they are unfortunately.

Noice!

Finally I found a site that teach me alots. Just caught some wild one at the local stream around Cairns. Any idea what are these? Not the yellow cherry.

I don't think there are any purple shrimps, it just happens that sometimes the occasional shrimp goes that colour for a while. I had a few shrimps go a beautiful blue for a while but it didn't last.............. this tends to only occur with young shrimps, which molt more often than adults and it may be down to what they have eaten primarily?

Sorry you are losing the adult shrimps. How long have you had the adults, if they are newish they may not have adapted to the new water if it is quite different from the previous water and the stress of birthing just been too much. Of coarse the shrimp born in the tank shouldn't be affected as they have always been in the water? If this is the problem it will just resolve itself as long as the water parameters are good and steady! Are those water parameters correct as the KH seems very high at around 6? You shouldn't have nitrite either, though low nitrates isn't a problem. Mixing different neocaridina will produce low quality offspring so you will get clear and poor colours and you would be best removing any lower grade before they are big enough to breed! The tangerine tigers should be ok as they are caridina. Young shrimp are difficult to judge what they will look like when they grow, and molt more often than adults, so you don't want to cull them too young!

MY adult shrimp have been dying after giving birth. I only have many baby shrimp. Water Parameters: GH 120 ppm (well water) KH 120 ppm (well water) Ph 7.5 NO 2 0.5 NO 3 2.0 Temperature 73 degrees F. Standard black and white gravel Snails- adults the size of a fingertip Miniature white spiral snails Red Sakura Tangerine Tiger Gold Yellow Blue Dream To my knowledge most babies survive: Some red Some red with a prominent red stripe on back similar to Gold Yellow Some red and clear stripped Some clear I had two blue babies that have disappeared. Planted tank: Hornwort Guppie grass Cryptocoroyne wenditi Dwarf Onion Aponogeton Ulvaceus Sponge filter Warm white and daylight lighting No Tropical Fish Light feeding every other day. ( I keep the snail population down to the point that they do not compete with shrimp for food.) Quote

I see there were a couple of people from Australia who were lucky enough to see a purple shrimp in their tanks. Does anyone else have purples in their tanks? I would love to find some and I wouldn’t be averse to dropping a mix into my tank in hopes of possibly getting purple shrimplets. Is it the chocolates and blues that combine for a purple?