White Specter Crayfish
Procambarus clarkii var. 'White'
Min Tank Size
75L
Adult Size
12.7 cm
Lifespan
3 years
About
Born from selective breeding of Procambarus clarkii, the White Specter is a color morph that strips away all the pigment from one of North America's most successful crayfish species. What you get is something that looks almost unreal under aquarium lighting, a fully opaque, chalk-white animal with red eyes that stands out dramatically against dark substrates. Despite the exotic appearance, this is still fundamentally the same bold, bulldozing crustacean that made P. clarkii famous.
Keepers should go in with clear expectations. Water conditions are pretty forgiving. Temperatures anywhere from 18 to 27 Celsius work fine, and pH can range from mildly acidic to moderately alkaline. Harder water helps with shell formation during molts, so aim for at least 6 GH and keep the KH up to stabilize pH swings. Diet is easy since they're enthusiastic omnivores that will eat sinking pellets, blanched vegetables, frozen foods, and whatever else sinks to the bottom. They also supplement their diet with anything they can catch or dig up, which includes plant roots, snail shells, and the occasional sleeping fish.
The personality is part of the appeal for fans of invert-only tanks. A White Specter will rearrange substrate, knock over decorations, claim a cave as its territory, and patrol its domain with obvious purpose. They're genuinely entertaining to watch. Just don't make the mistake of thinking the ghost-white coloration means a gentle temperament to match.
If you want to see how other hobbyists have set up dedicated crayfish tanks with this species, browsing community builds is a great way to find clever hardscape solutions.
Water Parameters
Temperature
°CpH
GH
dGHKH
dKHSwimming Level
Flow Preference
Keeping multiple White Specter Crayfish together
Best kept alone — its aggression and bottom-hunting behavior make safe tankmates nearly impossible in most home setups.
Compatibility
Realistically, the safest setup is a species-only tank. If you want to attempt tankmates, fast-moving, open-water fish that spend zero time near the bottom can sometimes coexist, think danios or certain livebearers in a larger tank. Anything slow, bottom-oriented, or under 5 centimeters is at serious risk. Corydoras, plecos, gobies, and loaches all make tempting targets. Shrimp of any size will be eaten. Mystery snails may survive briefly but are not safe long-term. Any fish with flowing fins, like bettas or guppies, will be grabbed the moment the opportunity arises. A 120 liter or larger tank gives fish a better chance to avoid the crayfish entirely.
Commonly kept with
Species this one is most often paired withCommonly tried but avoid
Often paired, but shouldn't beCare Notes
The biggest mistake beginners make is thinking any fish can share the tank safely. Beyond compatibility, the other critical issue is molting. When a White Specter molts, it's completely defenseless and stressed, so even normally peaceful tankmates may attack it during this window. Leave the shed exoskeleton in the tank since the crayfish will eat it to reclaim calcium. Lid security is non-negotiable because these animals will climb filter tubes and escape through surprisingly small gaps. A missing crayfish found dried out behind the tank is unfortunately a common story. Provide at least one snug cave or hiding spot per animal to reduce stress.
Behavior & Aggression
White Specters are territorial by nature and will defend their claimed space aggressively against anything that enters it, including conspecifics. Two crayfish in the same tank will eventually fight, and those fights usually end with a missing limb or a dead animal. Aggression toward fish tends to be opportunistic rather than relentless pursuit, but slow, bottom-dwelling, or long-finned fish are absolutely at risk, especially at night when the crayfish is most active. Claws are fast and precise, and a caught fish rarely escapes unharmed. Providing heavy cover reduces but doesn't eliminate this behavior.
Things to Know
- Keep singly or as a lone specimen, conspecific fights are often lethal
- Will eat or dismember any shrimp or small slow fish in the tank
- Escape artist, a tight-fitting lid is mandatory
- Molting leaves crayfish vulnerable for 48-72 hours, remove tankmates or hide them well
- Will uproot and shred most aquatic plants
Community Sightings
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