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Crystal Red Shrimp, commonly called CRS Shrimp, are one of the most recognizable Caridina shrimp in the aquarium hobby for their bright red and white patterns that REALLY stand out against green plants, moss, and darker substrates.
Crystal Red Shrimp are a selectively bred red variation of the Bee Shrimp and are a great option for hobbyists looking to get into Caridina shrimp. They do require more specific water parameters than Neocaridina, but once you have the right setup dialed in, keeping CRS can be incredibly rewarding!
The Crystal Red Shrimp you receive will generally be subadults around half an inch in size. Our CRS Shrimp typically range from S to SS grade in pattern.
Keep in mind that shrimp coloration and appearance can be affected by the stress of shipping. They may arrive looking lighter or less colorful than expected but should begin showing better coloration as they settle into their new aquarium.
If you're new to Crystal Red Shrimp, the grading system can be a little confusing at first. CRS are commonly graded from SSS, SS, S, A, B, to C
Generally, higher grades have more white coverage and more defined patterns, while lower grades tend to have more red. For example, a C grade Crystal Red Shrimp may be mostly red, while an SSS grade shrimp can have significantly more white.
Pattern isn't the only thing that matters, though. The quality and opacity of the red and white coloration can also affect the overall appearance of the shrimp!
Crystal Red Shrimp care is a little different from keeping Neocaridina shrimp. CRS prefer soft, slightly acidic water with very little KH, which is why we keep ours in remineralized RO/DI water with an active substrate.
Stability is especially important with Caridina shrimp. Rather than chasing an exact number every day, focus on keeping your aquarium established and your water parameters consistent.
We also recommend adding Crystal Red Shrimp to a mature aquarium with plenty of biofilm and natural grazing surfaces. Moss, driftwood, botanicals, and other aquarium plants give them places to explore and graze throughout the day.
Here are the water parameters we keep our Crystal Red Shrimp at here at Flip
A shrimp focused aquarium is going to give CRS the best chance to thrive and reproduce. Matten filters are especially nice for shrimp tanks because they provide gentle filtration while creating a HUGE surface area for biofilm and microorganisms that shrimp can graze on.
Crystal Red Shrimp spend a lot of their day grazing on biofilm, algae, and microorganisms growing throughout an established aquarium, but they should still be offered a quality shrimp food.
We like to provide a varied diet and avoid overfeeding. With shrimp, more food isn't always better! Uneaten food can quickly affect water quality, which is especially important to watch in a Caridina shrimp tank.
If your goal is to build a thriving Crystal Red Shrimp colony, we recommend keeping them in a shrimp only aquarium. Fish may be perfectly peaceful around adult shrimp and STILL decide that a tiny baby shrimp looks like lunch
Our Crystal Red Shrimp are backed by our 100% Live Arrival Guarantee. Please review our Live Arrival Guarantee for complete shipping and coverage details.
The crystal red shrimp we purchased from Flip Aquatics arrived very healthy. They are such great quality especially compared to shrimp we previously purchased at the pet store. They are the most interesting, colorful shrimp we have. They seem to be very hardy.
Purchased 7 and received 8. All are doing great.
my shrimp got here very nicely packaged and they are doing wonderful in their tank! very excited to watch them grow
Shrimp arrived perfectly healthy and in lovely packaging, no deaths and easily acclimated to their new home with the included acclimation instructions!! We won’t be getting our shrimp anywhere else!!
Want to let people know that Rob's crystal shrimp are very good quality. They came in very vibrant and active with very bright colors even after a 4-day travel in the mail. The US postal service was slow and getting the shrimp to me but they didn't seem to mind it at all. In the description it says s to SS grade. Three of the 11 shrimp were SSS grade which made me very happy. I ordered 10 crystal shrimp and 11 were sent 😄. The shrimp were packed very nicely and breather bags and with packing paper wrapped around them very neatly the box was insulated with big black foam in the shrimp came in actually very cool which was a big relief because I live in Florida. So if anyone was wondering if they should order these crystal shrimp I would highly recommend it!
Bought a starter pack of Crystal Reds and some hardscape/plants to go along with them. Received two extra for good measure but all survived with no issues! Followed directions from the acclimation video on YouTube. No deaths so far the next day and they are already eating like pigs. This was my first order for FW shrimp online. Everything was packaged perfect. Earned themselves a repeat customer for next time!
Ordered 20 CRS shrimp and had them overnighted. Received on the next day and was some of the best packaging anyone could have asked for. No DOAs, and followed the included acclimation guide and all seem to be doing well. Quality is spot on for the grade that was listed. Shout out to Jeff for the awesome job with the packaging. Will definitely order from you guys again!
I ordered 20 crystal reds, I got 23! All alive! Shipping was quick and packaging was perfect. Description says S - SS, I’d say that’s about right. I’m happy and will buy again.
The shrimp came in perfect and they even sent me an extra one! Very happy with my experience!
The shrimp arrived really fast and in great condition. All of them were alive and very active. I was really Impressed with the packing job and the instructions were very helpful. So far they are doing great and are very active. Will definitely be buying from you’ll again.
I ordered 5 and kindly received six healthy CRS. They all have been with me for a week now and are doing very well :) very cute, interesting to observe.
I'm used to receiving an extra shrimp to offset potential deaths during shipment, so I was a little surprised to find 5. Majority of them were active when I received them, except for one. After acclimation and adding them to their new home, 4 out of the 5 have colored up and are alive and well (one died shortly after adding to my tank). Overall, I am satisfied with the quality of shrimp I received, wished I received a backup shrimp though.
Very colorful and healthy shrimp
Am very happy with the packaging and the shrimp quality. The shipping was delayed due to the cold from polar vortex last week. I am so glad that Rob and his team delayed the shipment and sent me an email to let me know in advance. They truly care about the shrimp and are willing to wait until the weather improves before shipping them out. Thank you for doing that and I really appreciate it.
Amazing shrimp here guys, Rob did an amazing job, super happy and well packaged. Shipped promptly shrimp are beautiful
I recently received a batch of beautiful, healthy, well colored Crystal Reds. They have solid color, and have been street free since I've opened the post box. Again I am very satisfied with the quality and speed, and I will be returning in the future for my shrimp keeping wants and needs!!!! Thanks everyone @Flip Aquatics!
All arrived on time and alive.
All the shrimp arrived alive and acclimated well. Unfortunately, they were so tiny, my guppies ate them all. I wasn’t expecting that! They had never bothered the shrimp before!! So, 12 shrimp = $96 fish food. I’m so sad. Live and learn...
They were beautiful when I got them. Lively. Unfortunately, I’m not good with shrimp evidently. They died within a month. No fault of the seller.
Love the shrimp quality and they are thriving in my 40-gallon breeder
The team at Flip are truly a caring group of professionals.
Excellent quality, healthy shrimp! All 8 shrimp purchased are doing well! Definitely recommend
