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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).

## How many goldfish can you have in a 120 gallon pond?

For 6-8 goldfish, a 120 to 160-gallon tank is the optimum size. Smaller tanks need more maintenance, such as regular cleaning and water changes. This is because fish waste and pollution build up pretty fast in a smaller space.

## How many goldfish can I put in a 150 gallon pond?

150 Gallon is very small for a pond, But having said that I think you could keep about 3 or 4 goldfish in it. I wouldn’t feed them much though as you will be helping to pollute the water. With all those plants in there, there should be enough natural food for the fish.

## How many koi can be in a 100 gallon pond?

100-gallons: 1 smaller fish. 150-gallons: 1-2 smaller fish. 500-gallons: 2-4 koi. 750-gallons: 3-5 koi.

## How many fish can I put 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.

## How many goldfish can I put in a 200 gallon pond?

Calculate Pond Size If you need help with the math, use our online calculator . We recommend allowing 1-2 koi or 2-3 goldfish per 200 gallons of water, so if your pond is 1000 gallons, that’s approximately 5-10 koi or 10-15 goldfish.”.

## How many gallons do you need for 4 goldfish?

Since each goldfish generally require an average of 20-gallons of water, 2 to 3 healthy goldfish can live happily in a 40-gallon aquarium, but 50 to 60 gallons are recommended for 2-common goldfish or up to 4 small goldfish.

## How many goldfish can I put in a 500 gallon pond?

So by example your 500 gal pond could have 50 goldfish all ranging in size from fingerlings to 12″ as long as your biofiltration can handle the load.

## How big is a 200 gallon pond?

For a 200-gallon pond, the dimensions should be approximately 3-x 6-feet to a depth of 1-1/2 feet.

## How many fish can I put in my pond calculator?

The average recommended gallons per inch of fish is 10. To calculate how many inches of fish I can fit in my pond I would divide 1,000 by 10: 1,000/10 = 100. According to this calculation I can safely stock 100 total inches of fish in my pond.

## How many fish can I put in a 100 gallon pond?

Rule 1: one 6″ fish for every hundred gallons of water.

## How many gallons does a goldfish need?

In aquariums, adult common goldfish, comets and shubunkins should have at least 20 gallons of water per fish, while adult fancy goldfish should have at least 10 gallons per adult fish.

## How big is a 100 gallon pond?

The uniquely shaped Madeira holds 100 gallons of water and measures 79″ x 55″.

## How big should a pond be for goldfish?

A depth of four feet is ideal, although this is not a firm rule and there is some room for variation in this number. Building a goldfish pond that is very deep may cause problems with the oxygen levels in the deepest parts.

## How many fish can you have in a 55 Litre pond?

How many fish for my pond Fish type 150 Litre (40 gal) pond 5000 Litre (1300 gal) pond Koi None to small 5 Goldfish & Shubunkins 1 maybe 2 50 Small schooling fish 10-20 750-1000 Predatory fish 1 dependant on size. 3-5 with plenty of hiding areas.

## How big is a 1000gallon pond?

Possible Pond Sizes 8′ 2″ x 8′ 2″ x 24″ Deep.

## How many goldfish can you have in a 300 gallon pond?

Eventually through culling each year as necessary, your fish could grow to 30 inches (remember they need 300 gallons of water each). This means that your 8 x 10 pond may have only 3 or 4 fish that are 30 inches long.How many Fish Can I Have in my Pond? Pond size (assuming a rounded shape at 2 ft deep) # gold fish or # Koi 12 x 10 30 19.

## Can you have too many fish in a pond?

Too many fish in the pond creates an imbalance in water, so you’ll want to make sure you’re smart about the number and size of fish that you place in the water garden. Pond fish typically need 10 gallons of water for every inch of their length, but keep in mind they will grow larger over the years.

## How long do goldfish live in a pond?

In a pond, goldfish can live anywhere from 5 to 25 years. For fancy goldfish, their pond lifespan is usually 5 to 10 years. Common goldfish can live in a pond for 10 to 25 years. It depends on the type of goldfish, the quality of the pond, and their care.

## Can 2 goldfish live in a 20 gallon tank?

This is a very valid question. So, how many goldfish in a 20-gallon tank? The general rule of thumb is 1 gallon of water per 1 inch of fish. This means a 20-gallon tank is big enough to house 20 small goldfish.4 days ago.

## How many gallons do you need for 2 goldfish?

Based on the rules above, the goldfish tank size we recommend for two goldfish is: 42 gallons for two Common goldfish. That’s 30 gallons for the first fish and 12 additional gallons for the second fish. 30 gallons for two fancy goldfish.

## Is 15 gallons enough for a goldfish?

15 gallons – two 2 to 2½ inch goldfish. 20 gallons – two 2½ to 3 inch fish. 30 gallons – three 3 inch fish.

## 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.

## How many fish should be in a 500 gallon pond?

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.

## What is the best fish for ponds?

Best Outdoor Pond Fish Recommendations Koi. Descendants of the common carp, koi excellent pond fish and are made for outdoor living. Goldfish. Just like breeds of dogs, there are may breeds of goldfish. Hi-Fin Sharks. Catfish. Sturgeon. Plecos. Fancy Goldfish. Any Tropical Fish.