New Minnows Hiding and Stuck: Stress, Not Breeding

Feeder Minnows Need Recovery Time

Five new minnows (likely rosy reds sold as feeders): two died stuck in plant/filter; one hides under filter, "guarding" it. This is fear, not breeding behavior.

Why Feeder Fish Struggle

• Crowded, poor conditions at store → parasites, bacteria, weakened immune systems.
• Stuck in decor/filter due to lethargy, poor coordination from illness.
• Hiding = survival instinct in new, threatening environment.

Care Protocol for Feeder Minnows

1. Quarantine 2–4 weeks in a separate tank with sponge filter.
2. Treat prophylactically: Salt (1 tbsp/5 gal), MelaFix, and if signs of Ich/parasites, appropriate medication.
3. Feed high-quality food (small pellets, frozen daphnia) 2x daily.
4. Provide cover: Plants, PVC pipes, caves—but no tight gaps where they can wedge.
5. Tank size: 10+ gallons for 5 minnows.

Sexing Rosy Reds

• Males: Develop white breeding tubercles on snout/pectoral fins; slimmer.
• Females: Rounder belly when gravid.
• Not reliable until mature (6+ months).

Give them time, clean water, and treatment. They'll become active, hardy fish.