Hillstream Loach - Sewellia Lineolata

The exquisite Sewellia lineolata is a fairly recent introduction to the aquatics trade, and like other hillstream loach species, they do have specialist care requirements. 

Habitat:

These beautiful "suckerbelly" loaches have evolved to live in extremely fast-flowing waters, where they use their pectoral and pelvic fins to form a "suction cup" in order to hang on to smooth rocks amongst rapids. This high-velocity habitat must be replicated in the home aquarium by use of extra powerheads (in addition to the return flow from filters) to create a river type effect. The surface of the water should be visibly moving to ensure that there is a very high amount of oxygenation within the water at all times.

Without such a high level of oxygenation and water movement, Sewellia lineolata will not fare well at all. These delicate fish should really only be added to aquariums that are well mature. Such tanks will have a good established growth of algae for the fish to graze upon in order to consume the micro-organisms within, and will provide a source of nourishment whilst the fish may be adapting to the taking of prepared foods. The front glass can be wiped free of algae, but it is recommended that you allow algae to freely colonise the sides and back glass, and over the decor. Lighting should be bright in order to encourage a decent amount of algal growth. Ideally, the aquarium will be at least 36" long, and contain a multitude of hiding spots amongst rocks, cobbles and bogwood. Flat smooth rocks should be placed in the path of the flow, where these fish will often congregate just as they would do in their natural boulder-strewn habitats. Plants can be incorporated into the river style aquarium, but not all species will fare well under the extreme flow conditions.

Origin:

Cambodia, China & Vietnam. Current exports are from Vietnam.

Diet:

In addition to grazing on the natural algae in the tank (for the micro-organisms it contains) these fish will readily accept most small foods offered: frozen mosquito larvae, brineshrimp, daphnia etc, plus sinking catfish pellets and granules. Some may take flake foods, but this should not be relied upon. These fish also enjoy vegetable matter such as blanched spinach, kale, cucumber, melon etc.

Tank Mates:

Specialist Community

Water Parameters:

• Temperature: 72-79°F (22-26°C)
• pH: 6.0-7.5
• dH: up to 15 degrees
• Clean, well aerated water is essential