How many inches of koi fish can a 500-gallon koi pond safely hold? | 10-20 inches | 33% | 40-50 inches | 33% | Not sure | 33% | | | Question: How many inches of koi fish can a 500-gallon koi pond safely hold? Top Answer (33% of 3 votes): 40-50 inches.
Answer: 40-50 inches Explanation: I've always used the 10 inches of fish to every 100 gallons method - so roughly 5, 10-inch fish for a 500-gallon pond. ...but have seen waaaaaay more in very small ponds that strived for years. | Timeless Ponds & Fountains |
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