Rosy Red / Fathead Minnow Care Guide

Pimephales promelas · Freshwater Fish

Rosy Red / Fathead Minnow
AI-generated illustration of Rosy Red / Fathead Minnow
Temperature
50-75°F
pH
7.0-8.0
Suggested tank
20+ gal
Origin
North America
Family
Leuciscidae

What Rosy Red / Fathead Minnow look like

Pimephales promelas is a small cypriniform minnow with a blunt head, compact body, and short fins. The rosy red strain is a leucistic aquarium and feeder form, while wild-type fish are olive to gray with a darker lateral area.

Behavior & temperament

These are hardy, peaceful, active schooling fish for cool-water aquaria or ponds. Keep them in groups, quarantine feeder-source fish carefully, and avoid mixing them with warm tropical species long term because they prefer cooler, well-oxygenated water.

Diet & feeding

Fathead Minnows are omnivorous micropredators and grazers. Feed small quality pellets or flakes with daphnia, bloodworms, mosquito larvae, brine shrimp, spirulina, and occasional vegetable matter.

Behind the name

Pimephales means fat head; promelas means before black or dark-fronted, referring to breeding male coloration.

Plan your tank

Check the numbers before you buy: tank volume, a stocking plan, cycle progress, water changes, and your ongoing care routine.

Keeping Rosy Red / Fathead Minnow?

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