Cambarellus patzcuarensis Dwarf CPO's Crayfish

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Product Overview

Cambarellus patzcuarensis sp. Orange  also just called CPO's

The water parameters for this species is as follows:

Temp: 22-24°C (72-75°F)
Ph: 7.8
GH: 12-15
I essentially use tap water to breed them.
Genetics: It will/can interbreed with other Cambarellus species like montezumae, puer, shufeldtti, etc.


This outstanding looking crayfish is commonly known as orange dwarf cray. It can show  different varieties of tones of orange. They can be molted or striped. Their origin is not well known. Some people say the Cambarellus patzcuarensis sp. Orange was selectively bred in Germany from the wild form of the Cambarellus patzcuarensis which is from Mexico. Others say this wild form of C patzcuarensis was interbred in Germany with another dwarf cray in order to get their beautiful color. I have had the Cambarellus patzcuarensis sp. Orange for around a year now. Recently I have been able to breed them and am currently on my fourth batch at the moment.



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  • 5
    Great addition to the tank

    Posted by Unknown on 24th Feb 2018

    These colorful little crayfish are an awesome addition to the freshwater community tank. They seem inquisitive of you when you peer into the aquarium as they approach the front glass panel or maybe just a bit territorial. This aside they do not seem to bother any of the smaller fish or snails.
    My order was prepared on time and looked to be very carefully packaged. All crayfish arrived live and healthy.

  • 5
    Happy with my purchase

    Posted by Jennifer Walker on 18th Sep 2017

    I wasn't sure about ordering a live animal online, but it was packaged very well and arrived quickly. CPO is doing great. Glad I gave it a shot. Alpha Pro Breeders also had reasonable shipping charges.

  • 5
    Interesting little creatures

    Posted by Bodek on 11th Apr 2016

    Verry happy with the new addition to my community tank. Got 3 CPOs (different sizes) and they already adapted to my tank. Didn't notice any misbehavior (as yet), so hope they will do well. All of them have nice orangey color, a little shy, but scavenging on the bottom of the tank. They are a pleasure to watch and I hope they will continue to grow and enrich my tank.

  • 5
    Very healthy!

    Posted by Tim on 5th Aug 2015

    My CPO actually molted in its bag during shipment. Very nice orange color. Lively and healthy just like everything from Alpha Pro Breeders. Thanks, Ron!

  • 4
    very lil

    Posted by Tony on 11th Jul 2014

    I got 1 not that log a go for this wep page. He in my 36 gallon tank and going very good.

  • 5
    Love 'em more than I expected to!

    Posted by Louise on 24th Mar 2014

    I got into shrimp-keeping about a year ago, and decided to give these CPO a try. I bought 4 for a heavily planted tank with snails. Pleased to say that these CPO arrived very healthy and happy (they were individually bagged). They were a little shy for their first day or two but now can be seen constantly roaming in their tank. WAY more fun to watch than shrimp! And bigger than shrimp so don't have to strain my eyes as much to see them. The bright orange color makes them easy to spot in a planted tank. They do eat the occasional ramshorn snail which is okay by me and leave my plants alone. Great and unique aquatic pets!

  • 5

    Posted by Unknown on 19th Mar 2014

    Lots of fun to watch, will be purchasing more for our other fish tanks.
    Unfortunately, this morning looks like one of my fish has had one as a tasty meal. And I was afraid of the crawfish snacking on my fish. Time to relocate, til they grow out a bit!
    Ron...Great customer service!

    From APB: Might just be where they shed their skeleton, looks just like a dead crayfish!!

  • 4

    Posted by Sordes on 1st Mar 2014

    I received three, all vibrantly colored and stupid cute. The morning after their first night in the community tank, three out of five fish sported torn fins. These are three sizable adult golden dojos and the fastest lionchu alive. As I searched up and down the 55 gallon, here's Victim #4, my panda moor (Heibai) oddly wiggling around above the oriental sword patch. Behold! Her once gloriously flowing tail being held by tiny claws. Those teeny little rogues were catching my fish! I immediately went for the net. Two of the three are in the 10 gallon planted planty plant tank with The Snails, free to pinch, catch and eat as they please. The largest and seemingly shy one has yet to misbehave. He\she will remain in the big tank as long as this continues!

  • 5
    mini cpo

    Posted by randi bellantoni on 4th Jan 2014

    As always I'm so pleased with my order they came just as healthy and feisty as can be I can sit for hours to watch them try to keep everyone in line
    They are way to cute Ron who is better than you when it comes to getting what you want .
    Thank you again
    Sincerely Randi