パンダシュリンプ (Caridina cantonensis)

科: Atyidae

パンダシュリンプはテナガエビ科 Caridina cantonensis の高級品種改良系で、白地に大きな黒斑の入るパンダ模様（台湾の系統）が特徴です。20～26℃の軟水・酸性（pH5.8～6.8、3～8dGH）、硝酸塩ほぼゼロの安定した水質が必要。淡水で繁殖しますがゆっくりで、経験者向けです。

飼育条件

水温: 20–26 °C
pH: 5.8–6.8
GH硬度: 3–8 dGH
成魚の体長: 2–2.5 cm
最小水槽: 30 L
泳ぐ水層: Bottom — grazing moss and leaf litter
飼育難度: 上級
性格: Very peaceful

種の概要

Panda Shrimp is a high-grade selective-bred morph of Caridina cantonensis, the Hong Kong hill-stream atyid whose famous red-and-white 'Crystal Red' form revolutionized the shrimp hobby after Japanese breeder Hisaaki Suzuki stabilized it in 1996 from bee shrimp × tiger shrimp hybrids. The Panda Shrimp wears a white body broken by large black blotches in the panda pattern, a Taiwan-bred line related to the tiger bee complex. Like every cantonensis-line shrimp it demands soft, acidic, ultra-stable water: 20-26 °C, pH 5.8-6.8 and 3-8 dGH, ideally over active soil that buffers the chemistry, with nitrate kept near zero through gentle filtration and small, regular water changes. It grows to 2-2.5 cm, grazes biofilm and specialized bee-shrimp foods, and breeds in freshwater — but slowly and sensitively: the female carries only 20-30 eggs, larvae are smaller and slower than neocaridinas, and swings in parameters trigger molting failures. This is a connoisseur's shrimp — dazzling in a dark, mossy tank, but happiest with a keeper who measures rather than guesses.

原生環境

生息地: Soft, acidic, ultra-stable aquariums
水流: Gentle current
溶存酸素: Moderate oxygen

レイアウトと設備

底床: Active soil that buffers soft acidic water
流木・石組: Java moss and leaf litter over dark substrate
水草: Moss for grazing; avoid fast-melting plants

性格・餌・混泳

群泳性: Groups of 10 or more
餌: Biofilm grazer; specialized bee-shrimp foods
おすすめの混泳相手: Other soft-water Caridina morphs — Same chemistry; interbreed — keep lines separate
Otocinclus catfish — Safe, gentle, same soft water
Taiwan bee / shadow bee lines — Close relatives with identical needs
混泳しないほうがいい相手: Neocaridina (cherry-type) shrimp — Different water chemistry; one side will suffer
Copper-based medications — Lethal to all invertebrates
Large or boisterous fish — Stress and predation; shrimp need calm

繁殖と注意点

雌雄の違い: Females are deeper-bodied with a curved, rounded underbelly and a visible saddle; males are slim, smaller and less intensely colored.
繁殖方法: Breeds in freshwater but slowly and sensitively. After mating the female carries 20-30 eggs for about four weeks; hatchlings are tiny and appreciate powdered food and mature biofilm. Stable parameters matter more than any single number — swings cause failed molts.

よくある質問

パンダシュリンプは飼育しやすい？

経験者向き。Very peaceful。Groups of 10 or more。

パンダシュリンプの適水温と水質は？

適水温 20–26 °C。20–26 °C stable range。Stable 20–26 °C; consistency matters more than the exact number。

パンダシュリンプの大きさと水槽サイズは？

成魚は約 2–2.5 cm。Bottom — grazing moss and leaf litter。最小 30 L の水槽。

パンダシュリンプの餌は？

Biofilm grazer; specialized bee-shrimp foods。人工飼料に冷凍餌を組み合わせて。

パンダシュリンプは混泳できる？

Very peaceful。混泳の相手：Other soft-water Caridina morphs — Same chemistry; interbreed — keep lines separate, Otocinclus catfish — Safe, gentle, same soft water, Taiwan bee / shadow bee lines — Close relatives with identical needs。Neocaridina (cherry-type) shrimp — Different water chemistry; one side will suffer, Copper-based medications — Lethal to all invertebrates, Large or boisterous fish — Stress and predation; shrimp need calmは避ける。

パンダシュリンプの原産地は？

原産地はSelective-bred form of the Hong Kong hill-stream Caridina。Soft, acidic, ultra-stable aquariumsに生息。Gentle current。Moderate oxygen。

パンダシュリンプの繁殖は？

Breeds in freshwater but slowly and sensitively. After mating the female carries 20-30 eggs for about four weeks; hatchlings are tiny and appreciate powdered food and mature biofilm. Stable parameters matter more than any single number — swings cause failed molts.。Females are deeper-bodied with a curved, rounded underbelly and a visible saddle; males are slim, smaller and less intensely colored.。