Fish add color, movement and grace to your water garden. It is important to
remember that they are living creatures. Treat them with care and they will repay
you with years of enjoyment. 


The size of your pond will help determine the number of fish it can accommodate.  Overstocking needs to be avoided as fish produce waste. This waste is potentially toxic to them so it is better to have too few than too many. Fish will often reproduce and grow quickly in a pond environment. A general rule of thumb is to allow 1 inch (2 cm) of fish for every 13 US gallons (50 liters) of water. 

Note: Koi are specialized fish and need more space in a pond than goldfish.

Tips for selecting healthy fish:

• Clear Eyes (not cloudy)

• Undamaged fins

• Scales should be intact, parallel with body (not sticking outwards) and no red blotches

• No holes, ulcerations, or lumps

• Active, lively, normal swimming patterns

• No white spots (salt grain size) or white cottony growths on the fins or body

• Respiration rate should be regular and steady (in unstressed circumstances)

• Gills should be red inside, not faded or discolored, and not distended or puffy.

• Actively feeding

• Avoid selecting fish from a system that contains any sick specimens

Choosing fish that are healthy from the beginning will help avoid problems.


Goldfish can be kept in smaller ponds than Koi. They have been cultured for centuries and a variety of different species are available. Among the characteristics that determine the different varieties are tail length, color, and the absence of a dorsal fin. Goldfish can grow to 12 inches (30 cm) in length. Common varieties include: Sarasa, Comets, Red Fantails and Shubunkins.


Koi (carp) are the most well recognized pond fish. They come in a variety of different color patterns. Some koi have been reported to live up to 75 years and reach over 3 feet (0.9 meters) in length.


Treat your pond fish with great care. Any handling or transportation, even introducing them to your pond will cause stress.

Introduce your fish to the pond slowly, matching the water temperature by fl oating the bag in the pond before release. Keep in a shaded area as the sun can quickly raise the temperature in the bag.

Additionally, you can add a small amount pond water to the bag to help them get used to any differences there may be in the quality of water.

After approximately 20 minutes of this gradual introduction process your may release your fish into their new home. Any handling of the fish should be minimal and only a soft net should be used.


Treat your pond water with Laguna Water Prep before adding fish. It eliminates harmful chlorine or chloramine from newly added tap water, immediately making pond water safe. It will also neutralize toxic metal ions before they can harm fish. In addition, it coats and protects fins and scales that could have been damaged when fish were handled or transported.