If you've got a well-set up, stable pond, a good rule of thumb is 1” of fish for every 10 gallons of water. So for an immaculate 500 gallon pond, you can safely accommodate no more than 50” of fish. That sounds like a lot, but accounting for an approximate mature koi size of 12”, that allows only 4 fish. via
How many goldfish can I put in a 350 gallon pond?
It can only safely house four or at the very most five commons or comets, (single tailed), or around 16 to 18 fancy double tailed goldies. It sounds like you may have overloaded your tank or added the new fish too quickly and cause an ammonia build up in your pond which in turn killed the fish. via
How many goldfish can you keep in 100 gallon pond?
Rule 1: one 6″ fish for every hundred gallons of water. Rule 2: 1″ of fish per 10 gallons of water. Rule 3: 1” of fish for every square foot of surface area (24” deep pond) via
How many fish can you put in a 300 gallon pond?
300-gallons: 1-2 koi. 500-gallons: 2-4 koi. 750-gallons: 3-5 koi. 1500-gallons: 6-10 koi. via
How deep does a goldfish pond need to be?
A pond for goldfish or water lilies need be only about 2 feet deep for zones 5 or greater. Ponds built in colder areas may need more depth to keep the pond from freezing solid. Ponds built for koi should be close to three feet or deeper to allow these larger fish enough space. via
Can you have too many goldfish in a pond?
When you visit your local pet retailer or water garden center and see those goldfish and koi staring up at you through the water, how can you not take them home! Too many fish in a pond, however, can create an unhealthy environment for your fish and a breeding ground for algae. via
How many goldfish can I put in a 35 gallon pond?
Common goldfish can get 6 or 8 inches long, so you shouldn't get more than 2 or 3 for 35 gallons. Since the pond is small and shallow you may have trouble keeping goldfish in it during the hot summer months if it is located in full sun. via
How many goldfish can I put in a 250 Litre pond?
If you're average stocked Goldfish is 250g, a 4,000 litre pond would be able to support around 16 fish. If your average stocked Koi Carp is 1kg, a 4,000 litre pond would be able to support around 8 fish. via
Are goldfish good for ponds?
Koi and goldfish are two of the hardiest pond fish you'll ever find. Goldfish are beautiful, colorful, and easy to care for. Also, they can endure harsh weather pretty well. So yes, goldfish do pretty well in ponds. via
How many koi can go in a 100 gallon pond?
For each koi you have, we recommend 250 gallons at MINIMUM!
I've had one fish for 10 years in a 100 gallon pond and it's fine! Congratulations! via
How many goldfish can I put in a 75 gallon pond?
The 75 gallon pond is the same diameter as the 50 gallon pond but is a little deeper and therefore suitable for up to 10 goldfish or other similar small fish however it is not deep enough for Koi. via
How many koi can go in a 125 gallon pond?
For example, if you are using a 125-gallon tank, then the safe fish load would be 1.25 12-inch koi. In other words, one 12-inch fish would be fine, but two would be overcrowding. via
How many fish should I have in my pond?
Stocking levels will vary depending on filtration and husbandry however a general rule for stocking is 25 cm of fish per square metre of surface area or 55cms per 1000 litres volume. To populate an empty pond, don't rush into buying all your fish in one go. via