Freshwater crayfish in the aquarium.
Crayfish inhabit all existing water bodies on Earth, freshwater and marine, small and large, living at the bottom and in the water column. Their body is encased in a hard shell, featuring powerful serrated claws, a multitude of diverse appendages—walking, swimming, and mouthparts, totaling 19 pairs, and small black eyes on long stalks. In recent years, warm-water crayfish have become very fashionable aquarium subjects. Enthusiasts around the world successfully keep them in aquariums. Brightly colored species—red, blue, and striped—are especially popular. Dwarf crayfish get along well with other aquarium inhabitants without interfering with surrounding life.
• The body of a crayfish consists of; The body is covered with a shell; The crayfish has 19 pairs of appendages; Males differ from females; They swim backwards; Crayfish orient themselves using.
Keeping conditions for crayfish.
• A fairly spacious aquarium is needed; Optimal conditions for keeping crayfish; The coloration of crayfish is mainly due to; Aeration is necessary in the aquarium; Very sensitive to copper, ammonia, nitrites, and nitrates;
Keeping crayfish in the aquarium.
• Complex behavior patterns are typical; There must be hiding places; Access to the water surface must be organized; When keeping several individuals together; Freshwater crayfish consume food; Daily diet of crayfish; Young crayfish in the aquarium; Transportation of crayfish;
• Crayfish must have their own shelters; Number of shelters in the aquarium; Arrangement of stones in the aquarium; Flower pot fragments; Coconut shell.
• The molting process in crayfish; Females usually molt before mating; Approaching molting can be recognized; Molting is especially dangerous for juveniles; Calcium is necessary for crustaceans; A very important moment for molting crayfish is.
Breeding crayfish in the aquarium.
• Under favorable conditions they reproduce; Sex determination in crayfish; During the breeding period, crayfish become; Stimulation of reproduction; Crayfish feed on food; Mating and carrying eggs; Fertilization occurs at the moment when; The duration of the egg-carrying period depends on; Newly hatched crayfish are very small; In the first weeks, juveniles search for food; Provision of sufficient food and shelters should be ensured.
• Of greatest interest to aquarists are; The smallest representatives of this group grow up to; The crayfish organism is oriented towards a sufficient amount of; Calcium is needed for crayfish to build their shell; Most intra-group conflicts are provoked by; Procambarus are successfully bred in aquariums; Crayfish suitable for keeping with fish.
Genus Cambarellus. • Cambarellus diminutus, Cambarellus montezumae, Cambarellus ninae.
Genus Cambarellus-2. • Cambarellus patzcuarensis, Cambarellus puer, Cambarellus shufeldtii.
Genus Cherax. • Cherax boesemani, Cherax cainii.
Genus Cherax-2. • Cherax cuspidatus, Cherax destructor, Cherax quadricarinatus.
Genus Cherax-3. • Cherax holthuisi, Cherax papuanus, Cherax rotundus, Cherax tenuimanus.
Genus Orconectes. • Orconectes lancifer, Orconectes longidigitus, Orconectes luteus.
Genus Orconectes-2. • Orconectes macrus, Orconectes palmeri, Orconectes peruncus.
Genus Orconectes-3. • Orconectes punctimanus, Orconectes quadruncus, Orconectes williamsi.
Genus Procambarus. • Genus Procambarus. Procambarus clarkii.
Genus Procambarus-2. • Procambarus (Austrocambarus) cubensis.
Genus Procambarus-3. • Procambarus alleni, Procambarus acutus.
• Cambarus ludovicianus, Clibanarius africanus, Faxonella clypeata.
• Pacifastacus leniusculus, Pontastacus leptodactylus.
• Predisposition to diseases; Main diseases; Rickettsia; Crayfish plague; Rust-spot disease; Porcelain disease; Mycosis; Fungal infection of crayfish eggs; Opalinids; Microsporidiosis; Water mold in crayfish.
• Multicellular parasites; Trematodes; Cestodes; Nematodes; Acanthocephalans; Epistylis; Temnocephala; Parasites; Shell disease of crayfish; Algal fouling planaria.
• Foods for crayfish from brands – Shirakura, Dennerle, Benibachi, JBL.
