They are Not sexual and are all females. Description. Reply. Im wandering If blue marbled crayfish would be compatible with my tank? Animals initially showed negative phototaxis to white light and positive taxis to blue light. I have a 60 gallon tank. Totally cray. The population is exploding in Europe, but the species appears to have originated only about 25 years ago. Jan 2, 2021 #7 netjunki Chirping. They are parthenogenetic giving them the ability to self clone without any need for sexual reproduction or fertilization of eggs by a male.Marmorkrebs are not picky about water conditions and can stand a wide range of temperatures and PH levels. Marble Crayfish Procambarus fallax. The marbled crayfish or Marmorkrebs, is a parthenogenetic crayfish that was discovered in the pet trade in Germany in the 1990s. Self-cloning mutant crayfish have taken over a cemetery in Belgium. These were my starter fish and now everything I have is much bigger...golden gouramis, strawberry peacocks, albino red tailed shark, A foot long pleco, and A small pleco, I also have larger snails. First appearance in the German pet fish trade. The marbled crayfish is a mutant species that clones itself, scientists report. It would seem like such a good idea to have a self replicating food source. Marmorkrebs, also called Marbled Crayfish or Self Cloning Crayfish are really amazing crayfish. Apr 13, 2010 1 1 59. Using an aversive learning paradigm, we investigated the plasticity of innate behaviour following operant conditioning. Thanks to their eye-catching color, Electric Blue Crayfish (Procambarus alleni) are one of the most popular invertebrates in the freshwater aquarium market!Also known as the Blue Crayfish, Sapphire Crayfish or Florida Crayfish, these creatures are a unique addition to any tank. The marbled coloration from which its name derives is always present and is especially noticeable on the lateral parts of its carapace, which is usually olive or dark brown but can range from tan to reddish to blue (Kawai et al., 2009; Martin et al., 2010a). Max body size: 3.12 Inches. The marbled crayfish Procambarus virginalis is a unique freshwater crayfish characterized by very recent speciation and parthenogenetic reproduction. Elite Inverts provides the highest quality and most brilliant colors in aquarium crayfish (sometimes called crawfish) in the US. The marbled crayfish is a medium-sized crayfish with a distinct marbled color pattern and small chelae. Marbled crayfish are closely related to the "slough crayfish", Procambarus fallax, which is widely distributed across Florida. Species Summary. Identification:. Origin: USA?Some say Florida and Georgia. Hundreds of the marbled crayfish, which are always female, have invaded the historic Schoonselhof cemetery in Antwe… Did anyone ever try this out with the marbled crayfish. I was curious about this question as well after a recent episode of EconTalk which mentioned them and discussion with my spouse. Aversive learning was applied to affect the phototactic behaviour of the marbled crayfish. No natural populations of marbled crayfish are known. Keeping: You can keep 3 + young ones in an aquarium of 23 inches x 11 inches.Bigger tanks allow for a greater number of individuals. These in the highly popular CPO Dwarf Crayfish, (sometimes called "blue lobster crayfish") Electric Blue, Dwarf Blue, Clarkii in all colors including blue, white, and orange.