Identifying Pond Fish: Koi vs Goldfish

4 large fish in small pond. Thought goldfish (started 4"). Someone says koi, need bigger pond. Photo attached. Asks ID and relocation.

Photo Analysis

• Large white = koi (barbels visible).
• Small white = likely koi (90%).
• Black & orange = shubunkin goldfish coloration, no visible barbels.

Space Needs

Both are carp. 500 gal/adult koi ideal. All 4 content in >500 gal. Relocation only if pond tiny.

Check for barbels (whiskers) on upper lip → koi. None → goldfish.