Madagascan Rainbowfish
Behaviour Peaceful, active
Typical size 10cm
Max size 12cm
Tank Area Middle
Min Tank Size 75cm
Min Number 3
Temp Min: 20℃ Max: 26℃
Feeding Flake, dried, frozen, live foods
pH Range 7-8.5
Hardness m,h,vh
Madagascan Rainbowfish Bedotia geayi
  • Madagascan Rainbowfish Bedotia geayi - thumbnail
  • Madagascan Rainbowfish Bedotia geayi - thumbnail
  • Madagascan Rainbowfish Bedotia geayi - thumbnail

Madagascan Rainbowfish

Bedotia geayi

This medium sized rainbowfish has a slightly different appearance to the 'traditional' view of rainbowfishes and makes an excellent addition to a lively community, or a rainbowfish community tank. The contrasting and distinctive markings ensure that the fish stands out amongst others. The fish are a grouping species and at least two should be kept in a rainbowfish community, or at least four in a general community. Medium to hard water is preferable, and general good water quality will ensure best health.

Family Bedotiidae (Madagascar Rainbowfishes) | Synonyms Bedotia longianalis, B. tricolor | Other names Madagascar Rainbow Fish, Red-Tailed Silverside | Origin Eastern Madagascar | Breeding Eggs are deposited and attached to plant leaves | Natural Water Conditions pH 7-8, medium to hard | Natural Habitat Mountain streams & coastal rivers | Sexing Males are better coloured and have a pointed front dorsal, females dorsals are rounded

Have a Madagascan Rainbowfish Problem or General Question?

If you have a question about keeping Madagascan Rainbowfish's then please use our Madagascan Rainbowfish help forum. Join 100's of other fish enthusiasts with 1000's of years experience between them.

question mark     

Think Fish Community Creator - Madagascan Rainbowfish

Please check your water type for compatibility with your fish, which can be found on the Madagascan Rainbowfish information box.

If you'd like to talk about the "Madagascan Rainbowfish" with our users, then we have a buzzing community of fish enthusiasts where you can talk about tank issues, fish behaviour, tank stocking and any other issues related to the Madagascan Rainbowfish fish or other types you may have!

To save your details in the Fish Community Creator you must be logged in CLICK HERE to log-in or join

Like this tool? Help keep us online by becoming a think fish supporter and helping with our hosting and development costs!

Tank Details
question mark  Rename your tank:
question mark  Length: (cm)
question mark  Volume: (Litres)
question mark  Filter type:

* This fishtank will only last for this session - to save your tank please Join/Log in

question mark  Max Stocking level: 0cm
0-1 months 20%: 0cm
1-3 months 40%: 0cm
3-6 months 60%: 0cm
question mark  Current stock level: 0cm
Stock percentage: 0%
question mark  Suggested maximum
fish size for your tank:
My Fishtank Quantity Stock cm
There are no fish in your fishtank. To add fish, view a fish profile and click the 'Add to My Fishtank' button
This tool is a guide only. All fish have individual natures and compatibility can never be guaranteed. If you spot anything you think needs improving, contact us at

Click to read the Latest Think Fish Discussions from Thinkfish users.

Tropical Fish Keeping Help and Advice
Fish of the month