Silver tetra, Silver dollar tetra (Ctenobrycon spilurus)

科: Characidae

Silver tetra, Silver dollar tetra（Ctenobrycon spilurus）はカラシン科に分類される淡水魚で、南米に分布する。成魚は約 6–8.8 cm、適水温 23–27 °C。

飼育条件

水温: 23–27 °C
pH: 5.5–7.5
GH硬度: 5–12 dGH
成魚の体長: 6–8.8 cm
最小水槽: 93 L
泳ぐ水層: Middle of the water column
飼育難度: 中級
性格: Peaceful mid-water shoaler; confidence comes in numbers
原産地: 南米

種の概要

Ctenobrycon spilurus is a Characidae from South America. In the wild it prefers blackwater streams and flooded forest; in the aquarium it stays peaceful mid-water shoaler. Plan on 6–8.8 cm of adult fish at 23–27 °C. In a community tank it pairs well with Small Corydoras.

原生環境

生息地: Blackwater streams and flooded forest
水流: Still to gentle current
溶存酸素: Moderate

レイアウトと設備

底床: Dark sand and leaf litter
流木・石組: Driftwood and dense plant edges
水草: Floating and shaded plants appreciated

性格・餌・混泳

群泳性: Groups of 8 minimum; more is visibly better
餌: Small omnivore; quality flakes and small frozen foods
おすすめの混泳相手: Small Corydoras — Share the lower water peacefully
混泳しないほうがいい相手: Large or predatory fish — Tetras are snacks

繁殖と注意点

雌雄の違い: Subtle; females fuller-bodied
繁殖方法: Typical egg-scattering characin; adults eat the eggs

よくある質問

Silver tetra, Silver dollar tetraは飼育しやすい？

難易度：中級。Peaceful mid-water shoaler; confidence comes in numbers。

Silver tetra, Silver dollar tetraの適水温と水質は？

23–27 °C を安定して維持。pH 5.5–7.5、GH 5–12 dGH。

Silver tetra, Silver dollar tetraの大きさと水槽サイズは？

成魚 6–8.8 cm 前後。Middle of the water columnのため 93 L 以上の水槽を推奨。

Silver tetra, Silver dollar tetraの餌は？

Small omnivore; quality flakes and small frozen foods。Dark sand and leaf litter上で採餌する性質を活かし、沈む餌も与える。

Silver tetra, Silver dollar tetraは混泳できる？

可能。Peaceful mid-water shoaler; confidence comes in numbers。おすすめ：Small Corydoras — Share the lower water peacefully。Large or predatory fish — Tetras are snacksとの混泳は避ける。

Silver tetra, Silver dollar tetraの原産地は？

南米原産。Blackwater streams and flooded forest、Still to gentle current。

Silver tetra, Silver dollar tetraは飛び出す？

リスクは低いが、ふたがあると安心。

Silver tetra, Silver dollar tetraの繁殖は？

繁殖：Typical egg-scattering characin; adults eat the eggs。Subtle; females fuller-bodied。