Reticulated Hillstream Loach (Sewellia lineolata)
20–24°C · pH 6–7.5 · 68L
£11.99
A specialist stream loach for mature river-style aquariums. Red Hillstream Loach needs high oxygen, steady current, clean water and established biofilm grazing surfaces.
Algae GrazerBottom DwellerCommunity FishExotic FishFreshwater FishLoachModerate CarePeaceful
Care at a Glance
Scientific Name
Homaloptera orthogoniata
Max Adult Size
up to 10 cm
Lifespan
5 years
Care Level
Moderate
Temperament
Peaceful
Temperature
20–25°C
pH Range
6–7.5
Hardness
3–12 dGH
Minimum Tank
80L
Diet
Algae, biofilm, blanched vegetables, sinking pellets
Adult size is the maximum length this species reaches at full maturity (scientific sources). The livestock you receive will be younger and smaller. Product-photo provenance and any image-specific limitations are stated on the listing.
Water Parameters
Temperature
20–25°C
20°CIdeal25°C
pH Level
6–7.5
6Ideal7.5
Water Hardness
3–12 dGH
3 dGHIdeal12 dGH
Homaloptera orthogoniata
Red Hillstream Loach (Homaloptera orthogoniata) – Specialist River Loach
Moderate Care
Peaceful
£23.99/ fishSold Out
Shoal Pricing
— save up to 30%Shoaling fish: kept in a group they feel safer, stay calmer and show their best colour.
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£192.00You save £47.90
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Live arrival guaranteed. If they don’t arrive healthy, email us a short unboxing video the same day for a replacement or refund. Packed in oxygenated bags with insulation and heat packs when needed.
£19.95 tracked delivery — half price (£9.98) from £100.00, free from £200.00. One delivery charge however many fish you add — everything travels together with a licensed live-animal courier.
Read our reviews on Google (opens Google Business Profile in a new tab) or see verified buyer reviews and photos. Human support, careful packing and clear delivery updates for live aquatics.
A specialist stream loach for mature river-style aquariums. Red Hillstream Loach needs high oxygen, steady current, clean water and established biofilm grazing surfaces.
Algae GrazerBottom DwellerCommunity FishExotic FishFreshwater FishLoachModerate CarePeaceful
Care at a Glance
Scientific Name
Homaloptera orthogoniata
Max Adult Size
up to 10 cm
Lifespan
5 years
Care Level
Moderate
Temperament
Peaceful
Temperature
20–25°C
pH Range
6–7.5
Hardness
3–12 dGH
Minimum Tank
80L
Diet
Algae, biofilm, blanched vegetables, sinking pellets
Adult size is the maximum length this species reaches at full maturity (scientific sources). The livestock you receive will be younger and smaller. Product-photo provenance and any image-specific limitations are stated on the listing.
Water Parameters
Maintain these water conditions for optimal health and vibrant colors
Temperature
20–25°C
20°CIdeal25°C
pH Level
6–7.5
6Ideal7.5
Water Hardness
3–12 dGH
3 dGHIdeal12 dGH
Red Hillstream Loach (Homaloptera orthogoniata) is a specialist stream fish for aquarists who can provide clean, fast, oxygen-rich water. It should not be treated as a generic algae cleaner; it is a river-style loach that uses smooth stones, wood and mature biofilm to feel secure and feed naturally.
Quick Facts
| Scientific name | Homaloptera orthogoniata |
|---|---|
| Adult size | About 10cm |
| Minimum aquarium | 80 litres or larger, mature and well oxygenated |
| Water | 20-25°C, pH 6.0-7.5, soft to moderate hardness |
| Diet | Biofilm, algae, small frozen foods and quality sinking foods |
| Temperament | Peaceful; best with other flow-loving fish |
Care and Setup
Use strong filtration, extra aeration and rounded stones that grow grazing film. Keep nitrates low and avoid warm, slow, low-oxygen community tanks. A small group settles better than a lone fish when the aquarium has enough feeding surfaces.
Buying from Tropical Fish Co
Order with clear care guidance. Livestock is packed for a licensed live-animal courier and covered by our Live Arrival Guarantee when the acclimation guidance is followed.
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What customers say about ordering from us
4.6 on Google Maps, rated 4.6 out of 5 (opens in a new tab)4.4 · 91 shop reviews read them, rated 4.4 out of 5
- 4 out of 5Verified buyer
I have a small group of long finned mountain minnows. So was delighted to be able to order ten of this variety to increase the genetics in my tank . The ones I recieved are healthy but it’s to early to give a verdict on wether they are of a long finned type since they are small currently.
Gordon Walker · 23 Sept 2026
- 5 out of 5Verified buyer
100% success travel and "installation". Pleased with quality of purchase. The Siamese fighter a bit "shy" so have not yet seen him at his best yet but looking good. Happy customer. GG
George E Garratt · 21 Sept 2026
Reviews of our shop, collected by Judge.me, an independent third-party review collector. Newest first.