科: Poeciliidae
Dwarf Top Minnow（Heterandria formosa）はグッピー科に分類される淡水魚で、中米に分布する。成魚は約 2.7–4 cm、適水温 20–26 °C。
Heterandria formosa, a member of the family Poeciliidae, comes from Central America, where it inhabits warm freshwater streams and lakes. Easy-going community fish with lively breeding and unfussy — quality flakes, some greens, occasional treats, it grows to 2.7–4 cm and adapts well to a properly set-up aquarium in the 20–26 °C range. In a community tank it pairs well with Corydoras catfish.
難易度：中級。Easy-going community fish with lively breeding。
適水温 20–26 °C。20–26 °C recorded range。Stable temperature matching the species origin。
成魚は約 2.7–4 cm。Middle of the water column。最小 25 L の水槽。
Unfussy — quality flakes, some greens, occasional treats。人工飼料に冷凍餌を組み合わせて。
Easy-going community fish with lively breeding；Loose colonies; heavy planting shelters the fry。向いているのはCorydoras catfish — Share the bottom peacefully。Large predators — The fry buffet ends everythingは不向き。
中米原産。Warm freshwater streams and lakes、Still to gentle current。
飛び出しの傾向は低い。標準のふたでOK。
繁殖：Livebearer — females deliver 20–100 fry every few weeks。Subtle external differences。