Albino Rachow's Killifish (Nothobranchius rachovii)

Albino Rachow's Killifish (Nothobranchius rachovii) is a striking albino form of one of the best-known annual killifish in the aquarium hobby. The normal species is famous for blue and orange male colour, and the albino form keeps the same compact body shape, active behaviour and annual-killifish character while showing a paler body, red eye and vivid fin colour. This listing is for SKU 3152, supplied as Nothobranchius rachovii albino at around 2.5-3.5 cm.

This is not a generic community fish. It is a specialist freshwater killifish for aquarists who enjoy smaller species, planted layouts, careful feeding and close observation. It can be kept successfully, but it deserves a mature aquarium, a secure lid, gentle filtration and tank mates chosen around its size and feeding style. If you are new to annual killifish, read the care sections below before ordering so the setup is ready before the fish arrives.

Quick Facts

Natural Background and Annual Killifish Behaviour

Nothobranchius rachovii comes from seasonal floodplain habitats in south-eastern Africa, especially temporary pools, swamps and water-filled depressions associated with river floodplains. These habitats change through the wet and dry seasons, and some dry out completely. That life history is the reason this fish is known as an annual killifish: the fish grow quickly, mature early and reproduce in a way that allows eggs to survive a dry period in the substrate.

In the aquarium this background matters. Albino Rachow's Killifish are active, alert fish that spend time in open water and around the lower and middle areas of the tank, but they also appreciate dense planting, floating cover and places to break line of sight. They are small, fast feeders and confident once settled, yet they can be stressed by boisterous tank mates or bright, bare aquariums. A calm planted tank shows their behaviour far better than a busy mixed display.

Aquarium Setup

A 40 litre aquarium can work for a single male with two females, provided the tank is mature and well maintained. More space is better if you want extra females, more cover or a less intense social dynamic. Use a secure lid with no gaps around cables or filter outlets, because killifish are well known jumpers and can escape through surprisingly small openings.

Keep the filtration gentle. A sponge filter or a low-flow internal filter is usually better than strong current. These fish do not need a high-energy river-tank layout; they need clean, stable water with enough oxygen and a calm surface. Dark sand or fine gravel helps the colour show well and gives the tank a more natural look. Add Java moss, fine-leaved stems, floating plants, leaf litter tones or branchy wood to create cover and reduce stress.

Bright, open tanks make many killifish nervous. Subdued lighting with plants above and around the swimming space is usually more flattering and more comfortable. A planted setup also helps manage male attention, because females can move out of view when they need a break.

Water Conditions

Do not add this fish to a newly filled tank. Use a cycled aquarium with tested ammonia and nitrite at zero. Annual killifish often eat rich foods, so keep portions sensible and remove uneaten food before it breaks down. Stability is more important than constantly adjusting water chemistry.

Feeding

Albino Rachow's Killifish are micro-predators and generalist feeders. In nature, Nothobranchius rachovii feeds heavily on small aquatic invertebrates and larvae. In the aquarium, offer a varied protein-rich diet: fine frozen foods, baby brine shrimp, daphnia, cyclops, small bloodworm, mosquito larvae where suitable, and good quality small granules or crushed flakes once accepted.

Feed small amounts once or twice daily and watch body condition. These fish can overeat when food is abundant, and excess food quickly affects water quality in smaller tanks. New arrivals may take frozen or live foods more confidently than dry foods at first, so use familiar foods while they settle and then broaden the diet.

Temperament and Tank Mates

This species is peaceful with caution rather than a simple mixed-community fish. Males can be territorial with each other, especially in small tanks, and females need cover if a male is persistent. A trio of one male and two females is often easier than a single pair. If keeping more than one male, use a larger aquarium with heavy planting and be ready to separate fish if chasing becomes constant.

Tank mates should be calm, small and not greedy at feeding time. Avoid fin nippers, large predators, rough cichlids, very fast barbs and fish that dominate the food. Tiny shrimp or very small fry may be eaten. For best colour, behaviour and breeding potential, a species-focused setup is the safest choice.

Breeding Notes

Nothobranchius rachovii is a substrate-spawning annual killifish. Breeders often use a container of peat fibre, coconut fibre or suitable spawning medium so eggs can be collected and incubated separately. This is more specialised than breeding plant-spawning killifish, but it is part of what makes the species fascinating.

You do not need to breed them to enjoy them, but you should understand the annual life cycle before buying. They mature quickly and usually have a shorter natural lifespan than many community fish. Cooler, stable water and good diet can help them live well, but this is still a fish best appreciated as a short-lived, high-character species rather than a long-term centrepiece.

Health and Acclimation

On arrival, keep the aquarium lights low and acclimate slowly. Do not pour transport water into the aquarium. After release, give the fish quiet time and avoid heavy feeding on the first day. Over the first week, watch breathing, posture, colour, fin condition and feeding response. A healthy fish should be alert, responsive to food and able to hold position without clamped fins.

The main avoidable problems are jumping, poor water quality, underfeeding with unsuitable food, male harassment and stress from rough tank mates. A covered, planted, mature aquarium prevents most of these issues. If a fish hides constantly or loses condition, check water quality first, then review tank mates and feeding access.

Is This Fish Right for Your Aquarium?

Why Buy from Tropical Fish Co?

This listing keeps the exact SKU, supplier identity and care guidance together so you can check the fish against your aquarium before purchase. The source image on the page shows the albino form supplied for this SKU, while the additional gallery images help with visual context and setup planning. We pack livestock carefully for UK delivery using insulated packaging and seasonal heat protection where needed, with arrival support covered by our livestock terms.

Before adding Albino Rachow's Killifish to your basket, confirm that your tank is mature, covered, gently filtered and stocked with compatible fish. If you are unsure about a current community, ask before ordering; this species is far more rewarding when the aquarium is planned around its behaviour instead of forcing it into the wrong setup.