Aquarium Industries Freshwater Fish Compatibility Chart

Aquarium Industries

Freshwater Fish Compatibility Chart

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Ensure a healthy tank and healthy fish, by checking our guide to fish compatibility

Avoid mixing species that are incompatible, as this will lead to aggressive behaviour, stress, and the loss of your fish. The chart below can be used as a basic guide to

compatible fish groups and will also help you to identify which groups of fish should not be mixed. However, this chart is a guide only and no guarantees can be made as to the

compatibility of any particular species. Individual species within these groups vary in temperament and may not always comply with the guidelines below

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COMPATIBLE

USUALLY COMPATIBLE

SOME SPECIES MAY BE SLIGHTLY

AGGRESSIVE WHEN LARGER

NOT COMPATIBLE

Angelfish

Barbs

Betta (female)

Betta (male)

African Cichlids

Sth American Cichlids -dwarf

Sth American Cichlids -medium/

large

Bristlenose Catfish

Corydoras Catfish

Tandanus and Eel-tailed Catfish

Other Catfish

Danios / Whiteclouds / Medakas

Discus

Eels

Flying Fox

Common Goldfish

Fancy Goldfish

Dwarf Gouramis

Large Gouramis

Gudgeons

Guppies

Killifish

Loaches and Botia

Mollies

Murray Cod

Oscars and other large Cichlids

Silver and Golden Perch

Plants

Platys

Rainbowfish

Rasbora

Saratoga

Sharks

Silver Dollar

Shrimp / Yabbies / Crabs

Snails

Swordtails

Tetras

Taking Your Fish Home:

What should I do if some of my fish are behaving aggressively?

• Make sure you check your water quality before adding fish to your tank. If it is not suitable then do a water change and check pH and GH.

• When fish establish a territory, they will often behave aggressively to defend this. Changing the position of rocks, plants and other ornaments in the tank can eliminate territories and allow all fish to

You can purchase an easy to use test kit to help you monitor these water parameters.

establish territories.

• Sit the unopened bag in the top of the tank and leave it for 5 to 10 minutes for the temperature to equalise.

• Create additional hiding places by adding rocks, driftwood, plants etc.

• Open the bag over a bucket, and slowly release the fish into a net before placing them into the tank. Do not place the water from the bag into your tank.

• Hungry fish are more likely to be predatory, so make sure all fish are well fed. This is often achieved by feeding small amounts several times a day.

• A prophylactic treatment of the tank with Melafix, or a broad spectrum treatment, can help fish overcome the stress of getting new tankmates and prevent stress-related problems like Whitespot.

• If fish continue to fight and be aggressive, you may have to remove the aggressive species. Some species will become more aggressive as they grow.