Dwarf Spotted Rasbora are found in South East Asia on the Malay Peninsula onto southern Thailand, eastern Sumatra, Singapore and the island of Bintan in Riau Islands province, Indonesia. In nature these fish inhabit slow-flowing black water forest streams and rivers connected to peat swamps as well as ponds and ditches. They can be found hiding among fallen leaves and branches where the water is soft and acidic. The forest canopies often keep it heavily shaded as well. These fish swim in schools and are known as micropredators, feeding on small insects, worms, and zooplankton.
Dwarf Spotted Rasbora are not only colourful but also friendly and peaceful fish. The companionship of their own kind is absolutely essential for their well-being, so they need to be kept in groups of at least 8 to 10 individuals. They could be considered a community fish because they are so peaceful, but they are easily intimidated, so really can only be kept with certain fish. Carefully select tankmates that can be trusted with the Dwarf Spotted Rasbora. A lot of fish can be scary companions for a tiny fish, especially those that are much larger or highly rambunctious. Instead, choose tankmates that are of a similar size and personality and not overly hyper.
These fish are rather sensitive to their environment, so they are suggested for aquarists with some experience. To thrive, they need very good water conditions and, most importantly, consistent water quality. Because of their small size, a school can be housed in a 20 litre tank just fine, but a bit larger aquarium can also work well and is easier to maintain. They will show their colours best and be happiest in a carefully aquascaped tank. Provide plenty of plants for them to hide in and some floating plants to help subdue the light, and you will be rewarded with a dynamic display.
The Dwarf Rasboras are omnivores. In the aquarium, they need a varied diet. Flake or tablet foods with natural pigment enhancers benefit this fish a lot. Some good ingredients to look for in commercial foods are those that contain spirulina algae and carotenoids. They can only handle the smallest live foods, like daphnia or baby brine shrimp. These fish will do best when offered food several times a day, but only offer what they can eat in 3 minutes or less at each feeding. If you feed only once per day, provide what they can eat in about 5 minutes.
These fish need consistent water conditions, and their water must be kept clean. At least 25 to 50% of the tank water should be replaced once a month. If the tank is densely stocked, 20 to 25% should be replaced weekly or every other week. The substrate should also be vacuumed during water changes to avoid the accumulation of waste.
- Species – Boraras maculatus
- Common Name – Dwarf Spotted Rasbora
- Origin – South East Asia on the Malay Peninsula onto southern Thailand, eastern Sumatra, Singapore and the island of Bintan in Riau Islands province, Indonesia.
- Diet – Omnivorous
- PH Range – 6 – 7
- Temperature – Tropical 23°c – 26°c
- Breed Type – egg scatterers
- Current Size – approximately 2cm (Grows up to approximately 2.5cm)
- Sex – Un-sexed