Stocking a 100-Gallon Pond with Non-Traditional Fish: Natives and Subtropicals

Stocking a 100-Gallon Pond with Non-Traditional Fish: Natives and Subtropicals

A 100-gallon pond owner wants fish other than koi/goldfish. Asks about catfish and other options.

Native Fish (Cold Climates)

• Small species: bluegill, bullhead catfish, sunfish, minnows, darters, shiners – check state DNR for legality.
• 100 gallons is small for most natives; they need space and can be aggressive.

Subtropical Fish (Frost-Free Areas: FL, CA, etc.)

• Mollies, guppies, platies, swordtails, paradise fish, white cloud mountain minnows, zebra danios, Florida flag fish.
• Survive down to ~55-60°F.

Key Points

1. Verify legality of collecting/keeping natives.
2. Match species to your winter temperatures.
3. Quarantine all new fish.
4. 100 gallons limits options; rosy red minnows or small subtropicals are most practical.